[Event "0x10404803"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3 c6 8.d5 Ng4 9.
Bg5 f6 10.Bh4 h5 *

[Event "0x105ec5f7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.cxd5 cxd5 8.Ne5 
Nc6 9.Nc3 e6 10.Bf4 Nxe5 *

[Event "0x106fc561"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A26"]
[Opening "English"]
[Variation "closed system"]

1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.f4 f5 7.Nh3 Nf6 8.O-O O-O *

[Event "0x1082235a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D22"]
[Opening "QGA"]
[Variation "Alekhine defence"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 Nf6 5.Bxc4 b5 6.Bd3 Bb7 7.O-O Nbd7 8.b4 *

[Event "0x109a0d68"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
O-O 9.Rc1 Qa5 10.Nf3 e6 *

[Event "0x10a76884"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 d6 4.Nf3 g6 5.O-O Bg7 6.c4 O-O 7.Nc3 Qe8 8.d5 a5 9.
Ne1 Na6 10.Nd3 Bd7 *

[Event "0x10b9ac5b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C42"]
[Opening "Petrov's defence"]

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.Bd3 Nf6 6.h3 Be7 7.O-O O-O 8.c3 
Nbd7 9.Bc2 b6 10.d4 Bb7 *

[Event "0x10ce1891"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B88"]
[Opening "Sicilian"]
[Variation "Sozin, Leonhardt variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3 Be7 8.Be3 
O-O 9.O-O Nxd4 10.Bxd4 Bd7 *

[Event "0x10d5c9ab"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 c5 7.Bxb4 cxb4 8.O-O 
a5 9.a3 Na6 10.Re1 *

[Event "0x1155d395"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.a3 Bd6 
9.b4 dxc4 10.Bxc4 a5 *

[Event "0x116bef35"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.e3 Nbd7 8.Bd3 h6 
9.Bh4 O-O 10.O-O c5 *

[Event "0x11962e10"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B93"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Qc7 7.Bd3 g6 8.Nf3 
Nbd7 9.O-O Bg7 10.Qe1 e5 *

[Event "0x119f4fd4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B37"]
[Opening "Sicilian"]
[Variation "accelerated fianchetto, Maroczy bind, 5...Bg7"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Nc2 d6 7.Be2 f5 8.exf5 
Bxf5 9.Nc3 Nf6 10.O-O O-O *

[Event "0x11bb51e6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.b3 Ne4 8.Bb2 Bf5 
9.Nbd2 Qa5 10.Qe1 Nd7 *

[Event "0x11ef6103"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C16"]
[Opening "French"]
[Variation "Winawer, advance variation"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.a3 Bxc3+ 6.bxc3 b6 7.Qg4 Ng6 8.h4 h5 
9.Qg3 Ba6 10.Bd3 Bxd3 *

[Event "0x12028b9c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Be7 7.Bb5+ Nfd7 8.f5 
O-O 9.fxe6 Ne5 10.exf7+ Rxf7 *

[Event "0x120b4514"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C66"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence, 4.O-O, d6"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6 5.Re1 Bd7 6.c3 Be7 7.d4 O-O 8.Ba4 Re8
9.Nbd2 Bf8 10.a3 g6 *

[Event "0x12350a2b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 O-O 7.a3 Be7 8.Nf4 d5
9.Be3 Nc6 10.cxd5 Nxd5 *

[Event "0x12410510"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E17"]
[Opening "Queen's Indian"]
[Variation "anti-Queen's Indian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 O-O 7.d5 Bb4 8.Bd2 c6 
9.O-O *

[Event "0x125bec27"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 c6 7.e3 Bg4 8.h3 Bxf3 
9.Qxf3 Qb6 10.Bd3 Qxb2 *

[Event "0x12741350"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A07"]
[Opening "Reti"]
[Variation "King's Indian attack (Barcza system)"]

1.Nf3 d5 2.g3 Nc6 3.Bg2 e5 4.d3 Nf6 5.O-O Be7 6.c3 a5 7.Qc2 O-O 8.a4 h6 9.
e4 dxe4 10.dxe4 Be6 *

[Event "0x128c5131"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B01"]
[Opening "Scandinavian defence"]

1.e4 d5 2.exd5 Nf6 3.d4 Bg4 4.Be2 Bxe2 5.Qxe2 Qxd5 6.Nf3 e6 7.O-O Nc6 8.
Nc3 Qh5 9.Bf4 O-O-O 10.Rfd1 Bd6 *

[Event "0x129f8aaa"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C81"]
[Opening "Ruy Lopez"]
[Variation "open, Howell attack"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.Qe2 Be7 10.Rd1 Nc5 *

[Event "0x12cd6e51"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 c5 7.Bxb4 cxb4 8.O-O 
O-O 9.Qb3 *

[Event "0x12d7f565"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ Qd7 8.Qxd7+ 
Nbxd7 9.Nb5 O-O 10.cxd5 Nxd5 *

[Event "0x12e290c6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 h6 7.Be3 e5 8.d5 Na6 *

[Event "0x130de63a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A06"]
[Opening "Reti"]
[Variation "Nimzovich-Larsen attack"]

1.Nf3 d5 2.b3 Nf6 3.Bb2 Bf5 4.e3 e6 5.Be2 Bd6 6.O-O Nbd7 7.d3 h6 8.Nbd2 e5
9.c4 c6 *

[Event "0x13271391"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 c5 7.Qe2 a6 8.dxc5 
Bxc5 9.O-O Nc6 10.a3 O-O *

[Event "0x1359f047"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.Qe2 cxd4 7.exd4 Nc6 8.O-O 
Be7 9.Rd1 O-O 10.a3 *

[Event "0x1395c525"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 e5 7.dxe5 Nfd7 8.Bb2 
dxe5 9.e4 Nc6 10.Nc3 Nd4 *

[Event "0x13e881fc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D99"]
[Opening "Gruenfeld defence"]
[Variation "Smyslov, Yugoslav variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 
Nfd7 9.Qb3 c5 10.d5 Bxf3 *

[Event "0x14080a79"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 Nc6 5.c4 cxd4 6.Nxd4 Qb6 7.Nc2 d5 8.O-O 
Be7 9.cxd5 Nxd5 10.e4 Ndb4 *

[Event "0x140fa5c3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C88"]
[Opening "Ruy Lopez"]
[Variation "closed, anti-Marshall 8.a4"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.a4 Bb7
9.d3 Re8 10.Bd2 Bc5 *

[Event "0x1475d187"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C67"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence, open variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6 6.Bxc6 dxc6 7.dxe5 Nf5 8.
Qxd8+ Kxd8 9.Nc3 a5 10.h3 a4 *

[Event "0x14c22695"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E35"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation, 5.cd ed"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Bg5 h6 7.Bxf6 Qxf6 8.a3 
Bxc3+ 9.Qxc3 c6 10.e3 Bf5 *

[Event "0x14c363fe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D90"]
[Opening "Gruenfeld"]
[Variation "Three knights variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.cxd5 Nxd5 6.Bd2 O-O 7.Rc1 Nb6 8.e3 
Bg4 9.Be2 N8d7 10.O-O e5 *

[Event "0x14c578df"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A48"]
[Opening "King's Indian"]
[Variation "London system"]

1.d4 Nf6 2.Nf3 g6 3.Bf4 Bg7 4.Nbd2 O-O 5.e3 d6 6.h3 c5 7.c3 cxd4 8.cxd4 *

[Event "0x14f7f949"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A10"]
[Opening "English"]
[Variation "Adorjan defence"]

1.c4 g6 2.e4 e5 3.d4 Nf6 4.Nf3 exd4 5.e5 Bb4+ 6.Bd2 Qe7 *

[Event "0x1503636"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Bxd2+ 7.Qxd2 O-O 8.Nc3
d6 9.Qf4 *

[Event "0x1594a8a4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E06"]
[Opening "Catalan"]
[Variation "closed, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 Be7 5.Bg2 O-O 6.O-O dxc4 7.Qc2 a6 8.Qxc4 b5
9.Qc2 Bb7 10.Bd2 Be4 *

[Event "0x15cd7be0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ c6 8.cxd5 
Nxd5 9.Nxd5 Bxg5 10.Nc3 O-O *

[Event "0x15e515d8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.Nbd2 Bf5 8.b3 Ne4 
9.Bb2 Nd7 10.Nh4 Nxd2 *

[Event "0x15f6704a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A30"]
[Opening "English"]
[Variation "symmetrical variation"]

1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O g6 6.Nc3 Bg7 7.d4 Ne4 8.Nxe4 
Bxe4 9.d5 O-O *

[Event "0x160140ea"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B14"]
[Opening "Caro-Kann"]
[Variation "Panov-Botvinnik attack, 5...e6"]

1.c4 c6 2.e4 d5 3.exd5 cxd5 4.d4 Nf6 5.Nc3 e6 6.Nf3 Nc6 7.cxd5 Nxd5 8.Bd3 
Be7 9.O-O O-O 10.Re1 g6 *

[Event "0x1621b908"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C02"]
[Opening "French"]
[Variation "advance, Euwe variation"]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Bd7 6.Be2 Nge7 7.Na3 cxd4 8.cxd4 
Nf5 9.Nc2 Qb6 *

[Event "0x1639f381"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 c5 7.d5 e6 8.Qd2 exd5 9.
cxd5 Bd7 10.Bd3 Na6 *

[Event "0x163b8b06"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B62"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, 6...e6"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Be2 Be7 8.O-O 
O-O 9.Ndb5 a6 10.Bxf6 Bxf6 *

[Event "0x164287f2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A29"]
[Opening "English"]
[Variation "four knights, kingside fianchetto"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 d5 5.cxd5 Nxd5 6.Bg2 Nb6 7.O-O Be7 8.d3 
O-O *

[Event "0x1656bd0a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Qf3 Qb6 8.Nb3 Qc7
9.Be3 *

[Event "0x16798559"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.cxd5 exd5 5.Nc3 Nf6 6.Bg5 Bf5 7.e3 Nbd7 8.Bd3 
Bxd3 9.Qxd3 Be7 10.Rb1 O-O *

[Event "0x167f8920"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A20"]
[Opening "English opening"]

1.c4 e5 2.g3 c6 3.Nf3 e4 4.Nd4 d5 5.cxd5 Qxd5 *

[Event "0x16b5d480"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Bxc5 7.e3 Nc6 8.Nf3 
d5 9.a3 Qa5 10.Nd2 Be7 *

[Event "0x16cce14d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Nge7 7.f4 b5 8.Nf3 *

[Event "0x16e6ab"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C45"]
[Opening "Scotch"]
[Variation "Mieses variation"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Nf6 5.Nxc6 bxc6 6.e5 Qe7 7.Qe2 Nd5 8.
Nd2 Nb6 9.c4 Bb7 10.b3 O-O-O *

[Event "0x1736ebab"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D90"]
[Opening "Gruenfeld"]
[Variation "Three knights variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.cxd5 Nxd5 6.Bd2 O-O 7.Rc1 Bg4 8.e3 
Nc6 9.h3 Bxf3 10.Qxf3 Nb6 *

[Event "0x17384677"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, Benko variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Qb6 7.Nb3 e6 8.O-O 
Be7 9.Kh1 Qc7 10.f4 a6 *

[Event "0x173a2377"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O 
h5 9.h3 Bd6 10.f4 Bc5 *

[Event "0x174685fe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E36"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation, 5.a3"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.a3 Bxc3+ 6.Qxc3 dxc4 7.Qxc4 b6 8.Nf3
Ba6 9.Qc2 Nbd7 10.g3 *

[Event "0x174921c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B93"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 e5 7.Nf3 Qc7 8.Bd3 Be7
9.O-O Be6 10.Qe2 b5 *

[Event "0x17522bd2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B35"]
[Opening "Sicilian"]
[Variation "accelerated fianchetto, modern variation with Bc4"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 d6 8.f3 
Bd7 9.Qe2 O-O 10.O-O-O Qa5 *

[Event "0x175aeb21"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
Qa5 9.Rb1 b6 10.Bb5+ Bd7 *

[Event "0x17817a04"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 h6 7.Be3 Nbd7 8.Qc2 a6 
9.O-O-O e5 10.d5 Qe7 *

[Event "0x1796d6d9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A89"]
[Opening "Dutch"]
[Variation "Leningrad, main variation with Nc6"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.Nf3 Bg7 5.O-O O-O 6.c4 d6 7.Nc3 Nc6 8.d5 Ne5 
9.Nxe5 dxe5 10.b4 e4 *

[Event "0x17a7293e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B07"]
[Opening "Pirc"]
[Variation "Sveshnikov system"]

1.d4 d6 2.e4 Nf6 3.Nc3 g6 4.g3 Bg7 5.Bg2 O-O 6.Nge2 Nbd7 7.O-O e5 8.b3 
exd4 9.Nxd4 Re8 10.Bb2 Nc5 *

[Event "0x17c17fe4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C77"]
[Opening "Ruy Lopez"]
[Variation "Anderssen variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d3 d6 6.c3 g6 7.O-O Bg7 8.Nbd2 O-O 
9.Re1 Nd7 10.Nf1 Nb6 *

[Event "0x17f0c2bd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.e3 f5 5.Be2 Nf6 6.O-O Bd6 7.b3 Nbd7 8.Ba3 Bxa3 
9.Nxa3 O-O 10.Nc2 Ne4 *

[Event "0x17f6ecb3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B77"]
[Opening "Sicilian"]
[Variation "dragon, Yugoslav attack, 9.Bc4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 
O-O 9.Bc4 Nd7 10.Bb3 Nde5 *

[Event "0x18116b46"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C18"]
[Opening "French"]
[Variation "Winawer, advance variation"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Qa5 7.Bd2 Qa4 8.Qg4 g6
9.Qd1 b6 10.h4 h5 *

[Event "0x181d1783"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Bd3 Nbd7 8.O-O 
Qb6 9.Be3 Qxb2 10.Ndb5 *

[Event "0x1827d6d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.O-O c6 6.Nbd2 O-O 7.b3 a5 8.a4 Na6 
9.Ba3 Re8 10.c3 Bf5 *

[Event "0x184594f8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A07"]
[Opening "Reti"]
[Variation "King's Indian attack (Barcza system)"]

1.Nf3 d5 2.g3 Nf6 3.Bg2 c6 4.O-O Bf5 5.b3 e6 6.Bb2 Be7 7.d3 h6 8.Nbd2 Bh7 
9.Re1 O-O 10.e4 a5 11.a4 Na6 12.e5 Nd7 *

[Event "0x185a7a07"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 dxc4 7.e4 c5 8.dxc5 
Qa5 9.e5 Nh5 10.Be3 Rd8 *

[Event "0x18730dc4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Nc3 Be7 8.Ne5 
c5 9.dxc5 Bxc5 10.Nxc4 O-O *

[Event "0x187d51b6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.c3 Nf6 6.Re1 a6 7.Ba4 e5 8.h3 Be7 
9.d4 b5 10.Bc2 exd4 *

[Event "0x188c2766"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B08"]
[Opening "Pirc"]
[Variation "classical, h3 system"]

1.Nf3 g6 2.e4 Bg7 3.d4 d6 4.Nc3 Nf6 5.h3 O-O 6.Be3 c6 7.a4 Qc7 8.Qd2 Nbd7 
9.Be2 e5 10.dxe5 dxe5 *

[Event "0x189d2fcc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.c3 cxd4 7.cxd4 Be7 8.Bg5 
O-O 9.Qd3 Qb6 10.Nbd2 h6 *

[Event "0x18c753a9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 Nc6 7.g5 Nd7 8.Rg1 Be7
9.Rg3 *

[Event "0x18e0618d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.O-O c6 6.Nbd2 O-O 7.c4 Ne4 8.e3 Nxd2
9.Nxd2 Be6 10.Qe2 *

[Event "0x18f759e5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 Nf6 2.Nf3 d5 3.c4 dxc4 4.e3 e6 5.Bxc4 c5 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
b5 9.Bd3 Bb7 10.Nbd2 O-O *

[Event "0x192f5dff"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O 
Bd6 9.h3 Be5 10.Nde2 *

[Event "0x1963a65"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 c5 5.Nf3 Nf6 6.Qe2 cxd4 7.exd4 Be7 8.O-O 
O-O 9.Nc3 a6 10.Bg5 b5 *

[Event "0x199f0e39"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B56"]
[Opening "Sicilian"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be3 e5 7.Ndb5 a6 8.Na3 
b5 9.Nd5 Nxd5 10.exd5 Nb8 *

[Event "0x19aa4e0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A33"]
[Opening "English"]
[Variation "symmetrical variation"]

1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 6.g3 Bc5 7.Nb3 Bb4 8.Bg2 
d5 9.cxd5 Nxd5 *

[Event "0x19e1e777"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
O-O 9.e4 b5 10.Bd3 e5 *

[Event "0x19f9287d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn"]
[Variation "Torre attack"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.c3 cxd4 5.cxd4 Qb6 6.Qc1 Nc6 7.e3 Be7 8.Nc3 
O-O 9.Be2 h6 10.Bh4 d6 *

[Event "0x1a3391df"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B20"]
[Opening "Sicilian defence"]

1.e4 c5 2.d3 g6 3.g3 Bg7 4.Bg2 Nc6 5.f4 d6 6.Nf3 e6 7.O-O Nge7 8.c3 O-O 9.
Be3 b6 10.Bf2 Bb7 *

[Event "0x1a47f5bb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn"]
[Variation "Torre attack"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.e3 Qb6 *

[Event "0x1a70bb2b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, Rubinstein variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 a6 7.O-O c5 8.a4 Nc6 
9.Qe2 cxd4 10.Rd1 Be7 *

[Event "0x1ab00794"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D53"]
[Opening "QGD"]
[Variation "4.Bg5 Be7"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 h6 6.Bh4 b6 7.cxd5 Nxd5 8.Bxe7 
Qxe7 9.Nxd5 exd5 10.Rc1 Bb7 *

[Event "0x1ac21122"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Bxc5 7.Nf3 b6 8.e3 
Bb7 9.a3 Nc6 10.Rd1 Be7 *

[Event "0x1acac0c8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 d5 6.a3 Bxc3+ 7.Nxc3 cxd4 8.exd4 
dxc4 9.Bxc4 O-O *

[Event "0x1acc8206"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E38"]
[Opening "Nimzo-Indian"]
[Variation "classical, 4...c5"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 Na6 6.a3 Qa5 7.Bd2 Nxc5 8.f3 *

[Event "0x1af53bc7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.O-O c6 6.Nbd2 O-O 7.c4 Bf5 8.b3 Qa5 
9.Bb2 Ne4 10.a3 Nd7 *

[Event "0x1b074db3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, not Scheveningen"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e5 7.Nf3 h6 8.O-O 
Be7 9.Re1 O-O 10.Nd5 Be6 *

[Event "0x1b314189"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.Qd2 Be7 8.f3 
O-O 9.g4 a6 10.O-O-O Nxd4 *

[Event "0x1b391761"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni defence"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.h3 Bg7 8.e4 O-O 
9.Bd3 Nh5 10.O-O a6 *

[Event "0x1b439270"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.g3 dxc4 6.Qxc4 b5 7.Qd3 Bb7 8.Bg2 
Nbd7 9.O-O a6 10.Nc3 c5 *

[Event "0x1b502552"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B03"]
[Opening "Alekhine's defence"]
[Variation "four pawns attack, fianchetto variation"]

1.d4 d6 2.e4 g6 3.f4 Nf6 4.e5 Nd5 5.c4 Nb6 6.Nc3 dxe5 7.fxe5 c5 8.d5 Bg7 
9.Bf4 O-O 10.Qd2 e6 *

[Event "0x1b502906"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B56"]
[Opening "Sicilian"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g3 e5 7.Nde2 Be6 8.Bg2 
Be7 9.O-O O-O 10.h3 Rc8 *

[Event "0x1b6baefe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A53"]
[Opening "Old Indian defence"]

1.d4 Nf6 2.c4 d6 3.Nc3 Nbd7 4.e4 e5 5.d5 Nc5 6.f3 a5 7.Be3 Be7 8.Qd2 O-O 
9.Be2 *

[Event "0x1b6ea2c7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Nc3 Rb8 8.Qxc4 
b5 9.Qd3 Bb7 10.O-O c5 *

[Event "0x1b97b9ae"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.dxc5 dxc5 8.Qxd8 
Rxd8 9.Bxc5 Nc6 10.Ba3 b6 *

[Event "0x1bb23768"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A13"]
[Opening "English"]
[Variation "Neo-Catalan accepted"]

1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Qxc4 c5 7.O-O b6 8.Nc3 
Bb7 *

[Event "0x1be79d7b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C51"]
[Opening "Evans gambit declined, 5.a4"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bb6 5.a4 a6 6.O-O d6 7.c3 Nf6 8.d3 O-O 9.
Be3 Bxe3 10.fxe3 Be6 *

[Event "0x1bf2479"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A80"]
[Opening "Dutch, 2.Bg5 variation"]

1.d4 f5 2.Bg5 Nf6 3.Bxf6 exf6 4.e3 d5 5.c4 c6 6.Nc3 Be6 7.cxd5 cxd5 8.Qb3 
Qd7 9.Nge2 g5 10.g3 Nc6 *

[Event "0x1c017665"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B89"]
[Opening "Sicilian"]
[Variation "Sozin, 7.Be3"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Be3 a6 8.Qe2 
Ne5 *

[Event "0x1c0bfcc9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 a6 6.O-O Nc6 7.e3 Bd7 8.Nc3 Rb8 
9.Ne5 Na5 10.e4 b5 *

[Event "0x1c8adeb0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B66"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Qb6 9.Nb3 Bd7 10.Kb1 Rc8 *

[Event "0x1c991aa1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, Tal variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Nc6 7.Be3 Be7 8.Qf3 
O-O 9.O-O-O Qc7 10.Kb1 *

[Event "0x1cadb8ea"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B32"]
[Opening "Sicilian defence"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qb6 5.Nb3 Nf6 6.Nc3 e6 7.Bd3 d6 8.Qe2 
Be7 9.f4 a6 10.Bd2 Qc7 *

[Event "0x1cb435ad"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B92"]
[Opening "Sicilian"]
[Variation "Najdorf, Opovcensky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O 
Be6 9.f4 Qc7 10.g4 h6 *

[Event "0x1cc549b6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A00"]
[Opening "Polish (Sokolsky) opening"]

1.b4 e5 2.Bb2 Bxb4 3.Bxe5 Nf6 4.c4 O-O 5.Nf3 Nc6 6.Bb2 d5 7.cxd5 Qxd5 8.
Bxf6 gxf6 *

[Event "0x1cd562b8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Bd2 Bxd2+ 6.Qxd2 exd4 7.Qxd4 Nf6 8.
Qxd8+ Kxd8 9.Nc3 Be6 10.Nd4 Ke7 *

[Event "0x1d03b7da"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A08"]
[Opening "Reti"]
[Variation "King's Indian attack"]

1.Nf3 d5 2.g3 c5 3.Bg2 Nc6 4.d3 e6 5.O-O Bd6 6.e4 Nge7 7.Nbd2 O-O 8.Re1 
Bc7 9.c3 a5 10.a4 b6 *

[Event "0x1d186d74"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Re1 Nbd7 7.e4 e5 8.Nc3 Re8
9.h3 exd4 10.Nxd4 a5 *

[Event "0x1d1eeb76"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B14"]
[Opening "Caro-Kann"]
[Variation "Panov-Botvinnik attack, 5...e6"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6 6.a3 Be7 7.Nf3 O-O 8.Bd3 
dxc4 9.Bxc4 b6 10.O-O Bb7 *

[Event "0x1d1ffdb1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Nc3 exd4 6.Nxd4 Qh4 *

[Event "0x1d4e5166"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.h4 Be7 8.Rg1 d5 
9.exd5 Nxd5 10.Nxd5 Qxd5 *

[Event "0x1d813591"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A52"]
[Opening "Budapest"]
[Variation "Rubinstein variation"]

1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.Bf4 Nc6 5.Nf3 Bb4+ 6.Nc3 Bxc3+ 7.bxc3 f6 8.
exf6 Nxf6 9.Qd3 d6 *

[Event "0x1d898d10"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B54"]
[Opening "Sicilian"]
[Variation "Prins (Moscow) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3 e5 6.Nb3 d5 7.Bg5 Be6 8.exd5 
Qxd5 9.Nc3 Bb4 10.Bd2 Qd7 *

[Event "0x1d9db59a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "modern Scheveningen, main line"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be2 Nf6 7.O-O Be7 8.Be3 
O-O 9.f4 Bd7 10.Qe1 Qc7 *

[Event "0x1dca84fe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D28"]
[Opening "QGA"]
[Variation "classical, 7...b5"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 c5 5.Nf3 a6 6.O-O Nf6 7.Qe2 b5 8.Bd3 cxd4
9.exd4 Bb7 10.a4 bxa4 *

[Event "0x1e088f75"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Re1 Nc6 7.d5 Na5 8.e4 c6 
9.Na3 Bd7 10.Rb1 cxd5 *

[Event "0x1e106247"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E55"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system, Bronstein variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 O-O 6.Nf3 d5 7.O-O dxc4 8.Bxc4 
Nbd7 9.Qe2 b6 10.Rd1 cxd4 *

[Event "0x1e2598ee"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 dxc4 7.e4 Bg4 8.Bxc4 
Nfd7 9.Be3 Nb6 10.Be2 e6 *

[Event "0x1e5ad220"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Nc3 Be7 8.Qxc4 
b5 9.Qd3 Bb7 10.O-O O-O *

[Event "0x1e92bbfa"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C69"]
[Opening "Ruy Lopez"]
[Variation "exchange, Bronstein variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Qd6 6.Na3 b5 7.c3 Ne7 8.d4 
exd4 9.cxd4 Ng6 10.Nc2 Be7 *

[Event "0x1eada969"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A16"]
[Opening "English"]
[Variation "Anglo-Gruenfeld defense"]

1.c4 Nf6 2.Nc3 d5 3.cxd5 Nxd5 4.Nf3 g6 5.Qa4+ c6 6.Qd4 Nf6 7.Qxd8+ Kxd8 8.
e4 Bg7 9.d4 *

[Event "0x1ec2f930"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B12"]
[Opening "Caro-Kann"]
[Variation "advance variation"]

1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nc3 h5 5.Bd3 Bxd3 6.Qxd3 e6 7.Nf3 Qb6 8.O-O Qa6
9.Qd1 Nd7 10.Ne2 Ne7 *

[Event "0x1ec369bc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bd3 Nc6 7.Be3 Be6 8.Ne2 
Qd7 *

[Event "0x1ed24793"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E36"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation, 5.a3"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.a3 Bxc3+ 6.Qxc3 dxc4 7.Qxc4 b6 8.Nf3
O-O 9.Bg5 Ba6 10.Qc2 Nbd7 *

[Event "0x1ed9b74e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C55"]
[Opening "two knights"]
[Variation "Max Lange attack"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Nf6 5.O-O Bc5 6.e5 d5 7.exf6 dxc4 8.fxg7
Rg8 9.Bg5 Be7 10.Bxe7 Kxe7 *

[Event "0x1edac3d4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 a6 6.O-O Nc6 7.e3 Rb8 8.Qe2 b5 
9.Rd1 Bd7 10.Nc3 Bb4 *

[Event "0x1f17e0f5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C42"]
[Opening "Petrov"]
[Variation "Paulsen attack"]

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nc4 Nxe4 5.Nc3 Nxc3 6.bxc3 Be7 7.d4 O-O 8.
Bd3 Nd7 9.O-O Nb6 10.Ne3 d5 *

[Event "0x1f44460"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E35"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation, 5.cd ed"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Bg5 c6 *

[Event "0x1f9a1026"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C41"]
[Opening "Philidor"]
[Variation "Improved Hanham variation"]

1.d4 d6 2.e4 Nf6 3.Nc3 e5 4.Nf3 Nbd7 5.Bc4 Be7 6.O-O O-O 7.Qe2 c6 8.a4 Qc7
9.Rd1 Nb6 10.Bb3 Bg4 *

[Event "0x1f9fa56d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be3 Qc7 7.Bd3 Nf6 8.O-O 
Bd6 9.Nxc6 dxc6 10.f4 e5 *

[Event "0x1fae0e9c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 a6 7.Nge2 c5 8.d5 b5 9.
Qd2 *

[Event "0x1fb76496"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, not Scheveningen"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Bd7 7.f3 Rc8 8.Bb3 
g6 9.Be3 Bg7 10.Qd2 h5 *

[Event "0x1fbe2b00"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 Nbd7 7.Bd3 O-O 8.Nge2
c6 9.O-O Re8 10.f3 Nf8 *

[Event "0x1ff5eb7b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O 
b5 9.Nxc6 Qxc6 10.a3 Bb7 *

[Event "0x200088f5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D58"]
[Opening "QGD"]
[Variation "Tartakower (Makagonov-Bondarevsky) system"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 O-O 6.e3 h6 7.Bh4 b6 8.Be2 Bb7 
9.Bxf6 Bxf6 10.cxd5 exd5 *

[Event "0x2000e50e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B91"]
[Opening "Sicilian"]
[Variation "Najdorf, Zagreb (fianchetto) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 e5 7.Nde2 Be7 8.Bg2 
O-O 9.O-O b5 10.a4 b4 *

[Event "0x2013e7eb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Re1 Nbd7 7.e4 e5 8.dxe5 
dxe5 9.Nbd2 b6 10.b3 Bb7 *

[Event "0x202caaf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Qd3 Ba6 5.e4 c5 6.Bg5 Qa5+ 7.Qd2 Qxd2+ 8.Nbxd2
Be7 9.e5 Nd5 10.Bxe7 Kxe7 *

[Event "0x20396cdd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D28"]
[Opening "QGA"]
[Variation "classical, 7...b5"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 a6 7.O-O c5 8.Qe2 b5 
9.Bd3 cxd4 10.exd4 Nc6 *

[Event "0x205e5e78"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Re1 Nc6 7.Nc3 e5 8.dxe5 
dxe5 9.h3 Qe7 10.Bg5 Rd8 *

[Event "0x2061a91d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A90"]
[Opening "Dutch defence"]

1.d4 e6 2.c4 f5 3.g3 Nf6 4.Bg2 d5 5.Nf3 c6 6.O-O Bd6 7.b3 Qe7 8.Bb2 O-O 9.
Qc1 Bd7 10.Ba3 Be8 *

[Event "0x20750fa9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C88"]
[Opening "Ruy Lopez"]
[Variation "closed, anti-Marshall 8.a4"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.a4 Bb7
9.d3 Re8 10.Nc3 b4 *

[Event "0x2091331e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B93"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 e6 7.Bd3 b5 8.e5 dxe5 
9.fxe5 Nd5 10.Qg4 h5 *

[Event "0x209a0cc0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ Bc6 8.Qb3 
dxc4 9.Qxc4 O-O 10.e3 Bb7 *

[Event "0x2107cb28"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.Bg5 c5 6.c3 cxd4 7.cxd4 Bb4+ 8.Nbd2 
d5 9.O-O Nbd7 10.Ne5 O-O *

[Event "0x2126b497"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 c5 6.O-O Nc6 7.Ne5 Bd7 8.Na3 Nd5
9.Naxc4 Nxd4 10.Be3 Nc6 *

[Event "0x216a94b2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Qa4+ Bd7 6.Qxc4 Bc6 7.Bg2 Nbd7 8.Nc3
Nb6 9.Qb3 *

[Event "0x217320d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, Benko variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Qb6 7.Nb3 e6 8.Be3 
Qc7 9.f4 Be7 10.Bd3 O-O *

[Event "0x21c9df7b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 a5 7.a4 Na6 8.Bb2 c6 9.
Nbd2 d5 10.Ne5 Bf5 *

[Event "0x21cd209"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B28"]
[Opening "Sicilian"]
[Variation "O'Kelly variation"]

1.e4 c5 2.Nf3 a6 3.c3 d5 4.exd5 Qxd5 5.d4 Nf6 6.Be2 e6 7.O-O Nc6 8.Be3 
cxd4 9.Nxd4 Nxd4 10.Bxd4 Bc5 *

[Event "0x21e5ffab"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.Bg5 Na6 7.Nbd2 Be7 8.c3 O-O
9.e3 Qb6 10.Qb1 h6 *

[Event "0x21e79b17"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Yates variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 a5 7.O-O O-O 8.Bf4 Be7
9.Qc2 c5 10.dxc5 bxc5 *

[Event "0x22117dc2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C06"]
[Opening "French"]
[Variation "Tarrasch, closed variation, main line"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 Nc6 7.Ne2 cxd4 8.cxd4 
Qb6 9.Nf3 f6 10.exf6 Nxf6 11.O-O Bd6 12.Nc3 O-O *

[Event "0x2213e5f1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B94"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.Bg5"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 Nbd7 7.Bc4 Qa5 8.Qd2 
e6 9.O-O Be7 10.Rad1 h6 *

[Event "0x22284932"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Ba4 c4 8.Na3 b5 
9.Bc2 Bg4 10.h3 Bh5 *

[Event "0x2237748"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B30"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (without ...d6)"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 d6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Ba4 c4 8.Na3 b5 
9.Bc2 e5 10.b3 cxb3 *

[Event "0x2269e0c4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B07"]
[Opening "Pirc"]
[Variation "Ufimtsev-Pytel variation"]

1.e4 d6 2.d4 Nf6 3.Nc3 c6 4.Nf3 Bg4 5.h3 Bh5 6.g4 Bg6 7.Qe2 e6 8.h4 h5 9.
g5 Nfd7 10.Bf4 Be7 *

[Event "0x228a01e5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bd3 Nc6 7.Ne2 Nb4 8.Be4 
c6 9.Nbc3 Be6 10.Be3 N6d5 *

[Event "0x2292beeb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C11"]
[Opening "French"]
[Variation "Burn variation"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4 5.Nxe4 Nbd7 6.Nxf6+ Nxf6 7.Nf3 h6 8.
Bh4 c5 9.Bc4 cxd4 10.O-O Be7 *

[Event "0x22adff4f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B53"]
[Opening "Sicilian, Chekhover variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.Bg5 Nc6 6.Qd2 h6 7.Bh4 g5 8.Bg3 Nf6
9.Nc3 Nh5 10.Nd5 Bg7 *

[Event "0x22c92597"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be3 Nf6 7.Bd3 Be7 *

[Event "0x22e1dbdb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A11"]
[Opening "English"]
[Variation "Caro-Kann defensive system"]

1.c4 c6 2.Nf3 d5 3.g3 Nf6 4.Bg2 g6 5.b3 Bg7 6.Bb2 O-O 7.O-O Bg4 8.d3 Nbd7 
*

[Event "0x22ea8fe9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A70"]
[Opening "Benoni"]
[Variation "classical with e4 and Nf3"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 d6 5.Nc3 exd5 6.cxd5 g6 7.e4 a6 8.a4 Bg4 9.
h3 Bxf3 10.Qxf3 Bg7 *

[Event "0x232b2e2c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 d5 6.c4 Be7 7.cxd5 Nxd5 8.O-O 
O-O 9.b3 Bf6 10.Bb2 Qa5 *

[Event "0x232c4e8f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 Nf6 5.Nc3 e6 6.Bxc4 exd5 7.Nxd5 Nxd5 8.Bxd5
Be7 9.Qh5 O-O 10.Nf3 Nd7 *

[Event "0x233bad76"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B17"]
[Opening "Caro-Kann"]
[Variation "Steinitz variation"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Bc4 Ngf6 6.Ng5 e6 7.Qe2 Nb6 8.Bd3 
Be7 9.N1f3 h6 10.Ne4 Nxe4 *

[Event "0x23a0902"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A84"]
[Opening "Dutch defence"]

1.d4 e6 2.c4 f5 3.Nf3 Nf6 4.g3 d5 5.Bg2 c6 6.O-O Bd6 7.Bf4 Bxf4 8.gxf4 
Nbd7 9.e3 O-O 10.Ne5 Nxe5 *

[Event "0x23a486d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B31"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (with ...g6, without ...d6)"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.Bxc6 dxc6 5.d3 Bg7 6.h3 Nf6 7.Nc3 Nd7 8.Be3 
e5 9.Qd2 h6 10.Nh2 Qe7 *

[Event "0x23a92f43"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Bxc5 7.Nf3 Nc6 8.a3 
b6 9.Rd1 Bb7 10.e4 Nh5 *

[Event "0x23af8310"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A65"]
[Opening "Benoni"]
[Variation "6.e4"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Bd3 Bg7 8.Nge2 O-O
9.O-O Ng4 10.h3 Ne5 *

[Event "0x23ca58f7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 c6 7.Bd3 Nbd7 8.Qc2 
Nh5 9.Bxe7 Qxe7 10.O-O-O Nb6 *

[Event "0x23d3623a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E18"]
[Opening "Queen's Indian"]
[Variation "old main line, 7.Nc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Bd2 Bf6
9.Rc1 c5 10.d5 exd5 *

[Event "0x23fb99f9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B88"]
[Opening "Sicilian"]
[Variation "Sozin, Leonhardt variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3 a6 8.f4 Be7
9.O-O O-O 10.Kh1 d5 *

[Event "0x24231efe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 Nc6 6.Qa4 Bb4+ 7.Bd2 Nd5 8.Bxb4 
Nxb4 9.O-O Rb8 10.Na3 a6 *

[Event "0x243e18b1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C14"]
[Opening "French"]
[Variation "classical, Steinitz variation"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7 7.f4 a6 8.Nf3 c5
9.dxc5 Nxc5 10.Bd3 b5 *

[Event "0x244df4eb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A19"]
[Opening "English"]
[Variation "Mikenas-Carls, Sicilian variation"]

1.c4 Nf6 2.Nc3 e6 3.e4 c5 4.e5 Ng8 5.d4 cxd4 6.Qxd4 Nc6 7.Qe4 *

[Event "0x2467442b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "modern Scheveningen, main line"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O O-O 8.f4 
Nc6 9.Be3 e5 10.Nb3 exf4 *

[Event "0x248239c0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B23"]
[Opening "Sicilian"]
[Variation "chameleon variation"]

1.e4 c5 2.Nc3 Nc6 3.Nge2 a6 4.g3 Nf6 5.Bg2 e6 6.O-O Be7 7.d3 Qc7 8.f4 d6 
9.h3 b5 10.a3 Bb7 *

[Event "0x2486b2cd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B56"]
[Opening "Sicilian"]

1.e4 c5 2.Ne2 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g3 g6 7.Bg2 Nxd4 8.Qxd4 
Bg7 9.O-O O-O 10.Qd1 Bg4 *

[Event "0x249cd63c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E38"]
[Opening "Nimzo-Indian"]
[Variation "classical, 4...c5"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 Na6 6.a3 Qa5 7.Bd2 Nxc5 8.Rd1 
Bxc3 9.Bxc3 Qa4 10.Qxa4 Nxa4 *

[Event "0x24c780f3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C07"]
[Opening "French"]
[Variation "Tarrasch, open variation"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 Nc6 5.Bb5 cxd4 6.Nxd4 Bd7 7.Nxc6 Bxc6 8.
Bxc6+ bxc6 *

[Event "0x24cb893"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Be7 7.Bd3 Nc6 8.Nf3 
O-O 9.O-O Nb4 10.e5 Nfd5 *

[Event "0x250863ea"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A86"]
[Opening "Dutch"]
[Variation "Leningrad variation"]

1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nc3 Nc6 6.Nf3 d6 7.d5 Ne5 8.Nxe5 dxe5
9.O-O O-O 10.Qb3 e6 *

[Event "0x251b43d1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B78"]
[Opening "Sicilian"]
[Variation "dragon, Yugoslav attack, 10.O-O-O"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Bc4 
Nc6 9.Qd2 Bd7 10.O-O-O Rc8 *

[Event "0x251e57bc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A89"]
[Opening "Dutch"]
[Variation "Leningrad, main variation with Nc6"]

1.d4 f5 2.Nf3 Nf6 3.g3 g6 4.Bg2 Bg7 5.O-O O-O 6.c4 d6 7.Nc3 Nc6 8.d5 Na5 
9.Qd3 c5 10.b3 Bd7 *

[Event "0x2521dcd4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Nf3 e6 4.Bg2 d5 5.c4 c6 6.Qc2 Bd6 7.Bf4 O-O 8.Nbd2 Bxf4
9.gxf4 b6 10.e3 Bb7 *

[Event "0x25253076"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B85"]
[Opening "Sicilian"]
[Variation "Scheveningen, classical main line"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O O-O 8.f4 a6
9.Be3 Nc6 10.Qe1 Qc7 *

[Event "0x25554da8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Nc3 Nbd7 7.e4 e5 8.a4 a6 
9.dxe5 dxe5 10.a5 *

[Event "0x255c84d8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A94"]
[Opening "Dutch"]
[Variation "stonewall with Ba3"]

1.Nf3 f5 2.c4 e6 3.g3 Nf6 4.Bg2 c6 5.O-O d5 6.d4 Be7 7.b3 O-O 8.Ba3 Bxa3 
9.Nxa3 Qe7 10.Qc1 Bd7 *

[Event "0x2584544e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
O-O 9.Rc1 Qa5 10.Nf3 Bg4 *

[Event "0x2584c921"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B67"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 b5 10.a3 Be7 *

[Event "0x25898b3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A62"]
[Opening "Benoni"]
[Variation "fianchetto variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.g3 Bg7 8.Bg2 O-O 
9.O-O Na6 10.e4 Re8 *

[Event "0x25cf6c4a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
cxd4 9.cxd4 O-O 10.Nf3 Nc6 *

[Event "0x25dd2478"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B77"]
[Opening "Sicilian"]
[Variation "dragon, Yugoslav attack, 9.Bc4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Bc4 
Nc6 9.Qd2 Nd7 10.O-O-O Nb6 *

[Event "0x25de164"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D37"]
[Opening "QGD"]
[Variation "4.Nf3"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qd2 c6
9.h4 *

[Event "0x25ef4ac6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C11"]
[Opening "French"]
[Variation "Burn variation"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4 5.Nxe4 Be7 6.Bxf6 gxf6 7.Nf3 f5 8.Ng3
c5 9.Bb5+ Nc6 10.c3 Qb6 *

[Event "0x26006755"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B30"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (without ...d6)"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 e6 4.O-O Nge7 5.b3 a6 6.Bxc6 Nxc6 7.Bb2 b6 8.c4 
Bb7 9.Re1 Qc7 10.d4 cxd4 *

[Event "0x265559b3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E35"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation, 5.cd ed"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Bg5 h6 7.Bxf6 Qxf6 8.a3 
Bxc3+ 9.Qxc3 O-O 10.e3 Bf5 *

[Event "0x267de6f9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D53"]
[Opening "QGD"]
[Variation "4.Bg5 Be7"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 h6 6.Bh4 O-O 7.Rc1 c5 8.Nf3 cxd4 
9.Nxd4 dxc4 10.Bxc4 Bd7 *

[Event "0x2686a1f8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D22"]
[Opening "QGA"]
[Variation "Alekhine defence"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 Bg4 5.Bxc4 e6 6.Qb3 Bxf3 7.gxf3 b5 8.Be2 
Nd7 9.a4 b4 10.Nd2 *

[Event "0x268787d8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B84"]
[Opening "Sicilian"]
[Variation "Scheveningen (Paulsen), classical variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 a6 7.f4 Qc7 8.g4 *

[Event "0x26b3be0f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A45"]
[Opening "Trompovsky attack (Ruth, Opovcensky opening)"]

1.d4 Nf6 2.Bg5 g6 3.Bxf6 exf6 4.e3 Bg7 5.Bd3 f5 *

[Event "0x26b6541"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D22"]
[Opening "QGA"]
[Variation "Alekhine defence"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 Nf6 5.Bxc4 b5 6.Bd3 Bb7 7.O-O e6 8.a4 b4 
9.Nbd2 Nbd7 *

[Event "0x26ce6b76"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C80"]
[Opening "Ruy Lopez"]
[Variation "open, 8...Be6"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.Be3 Bc5 10.Qd3 O-O *

[Event "0x270120f8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B22"]
[Opening "Sicilian"]
[Variation "Alapin's variation (2.c3)"]

1.e4 c5 2.c3 e6 3.d4 d5 4.exd5 exd5 5.Be3 c4 6.b3 cxb3 7.axb3 Nc6 8.Bd3 
Bd6 9.Nf3 Nge7 10.O-O Bf5 *

[Event "0x270db0b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.f3 Be7
9.Qd2 h5 10.O-O-O Nbd7 *

[Event "0x2716415a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 d5 6.O-O e5 7.Nf3 Nc6 8.c4 d4 
9.e3 Bc5 10.exd4 Bxd4 *

[Event "0x274f0a28"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A95"]
[Opening "Dutch"]
[Variation "stonewall with Nc3"]

1.Nf3 e6 2.c4 f5 3.g3 Nf6 4.Bg2 Be7 5.O-O O-O 6.Nc3 c6 7.d4 d5 8.Qc2 Ne4 
9.b3 Nd7 10.Bb2 Qe8 *

[Event "0x27612c30"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 d6 7.Bg2 Bd7 8.O-O Nf6
9.a4 Be7 10.Nb3 Na5 *

[Event "0x277733ae"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Nc3 exd4 6.Nxd4 Ne7 7.Bxc4 Nbc6 8.
Be3 O-O 9.Nb5 Ba5 10.O-O a6 *

[Event "0x27b8f313"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.Bg5 dxc4 6.Qxc4 b5 7.Qc2 Bb7 8.Nbd2 *

[Event "0x27c2ee68"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B54"]
[Opening "Sicilian"]
[Variation "Prins (Moscow) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3 a6 6.c4 Nc6 7.Nc3 Nxd4 8.Qxd4 
g6 9.Be3 Bg7 10.Qd2 O-O *

[Event "0x27d8ebe0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 Nf6 2.Nf3 d5 3.c4 dxc4 4.e3 e6 5.Bxc4 c5 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
Nc6 9.a3 b5 10.Bd3 Bd6 *

[Event "0x27e73c65"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.f4 e5 8.Nf3 Ng4
9.Bc1 exf4 10.Bxf4 Be7 *

[Event "0x2858a275"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A11"]
[Opening "English"]
[Variation "Caro-Kann defensive system"]

1.c4 c6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Bf5 5.Qb3 Qb6 6.cxd5 Qxb3 7.axb3 cxd5 8.
Nc3 Nc6 9.d3 e6 *

[Event "0x289ca742"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
cxd4 9.cxd4 Nc6 10.Bb5 O-O *

[Event "0x28f96af5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni"]
[Variation "Nimzovich (knight's tour) variation"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Nd2 Bg7 8.Nc4 O-O
9.Bg5 Qe7 10.e3 b6 *

[Event "0x29104757"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.b3 Ne4 8.Bb2 a5 9.
Nbd2 f5 10.Ne5 Be6 *

[Event "0x29301beb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B67"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f3 h6 10.Be3 h5 *

[Event "0x294a087"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B89"]
[Opening "Sicilian"]
[Variation "Sozin, 7.Be3"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Be3 a6 8.Bb3 
Be7 9.Qe2 Qc7 10.O-O-O O-O *

[Event "0x296df55f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B84"]
[Opening "Sicilian"]
[Variation "Scheveningen (Paulsen), classical variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 a6 7.a4 Be7 8.a5 *

[Event "0x298cc743"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 Bb4+ 5.Bd2 Be7 6.Bg2 O-O 7.O-O c6 8.Qc2 b6 
9.Bf4 Nh5 *

[Event "0x29c0e452"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.Nc3 d5 7.Qb3 a5 8.c5 Ne4 9.
Na4 Nd7 10.O-O e5 *

[Event "0x29c73b8d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C02"]
[Opening "French"]
[Variation "advance variation"]

1.e4 e6 2.d4 d5 3.e5 b6 4.c3 Qd7 5.a4 a5 6.f4 h5 7.Nd2 Ne7 8.Ndf3 Ba6 *

[Event "0x29dd21a3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Riumin variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.Nc3 O-O 8.O-O 
Na6 9.Rc1 Re8 10.Ne5 Bxg2 *

[Event "0x29ee92ea"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D53"]
[Opening "QGD"]
[Variation "4.Bg5 Be7"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 h6 6.Bh4 O-O 7.Rc1 c5 8.dxc5 dxc4
9.Bxc4 *

[Event "0x2a0d5205"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A47"]
[Opening "Queen's Indian defence"]

1.d4 Nf6 2.Nf3 b6 3.Bf4 Bb7 4.e3 e6 5.Bd3 Nh5 6.Bg3 Be7 *

[Event "0x2a1d5e64"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C88"]
[Opening "Ruy Lopez"]
[Variation "closed, anti-Marshall 8.a4"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.a4 Bb7
9.d3 Re8 10.Na3 *

[Event "0x2a5d728f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.O-O c6 6.b3 O-O 7.Bb2 Bf5 8.c4 Nbd7 
9.Nc3 Ne4 10.e3 Nxc3 *

[Event "0x2a7163b1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B22"]
[Opening "Sicilian"]
[Variation "Alapin's variation (2.c3)"]

1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4 5.Nf3 e6 6.cxd4 d6 7.a3 Bd7 8.Bd3 Bc6 
9.O-O Nd7 10.Re1 Qc7 *

[Event "0x2a82c3c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E74"]
[Opening "King's Indian"]
[Variation "Averbakh, 6...c5"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 b5 8.cxb5 a6 9.
f3 *

[Event "0x2aa1c61c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E74"]
[Opening "King's Indian"]
[Variation "Averbakh, 6...c5"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.dxc5 dxc5 8.Qxd8 
Rxd8 9.e5 Nfd7 10.e6 Nf6 11.exf7+ *

[Event "0x2aa9a64c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Bxc5 7.Nf3 b6 8.e3 
Bb7 9.a3 Be7 10.Rd1 a6 *

[Event "0x2aad5ab"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C17"]
[Opening "French"]
[Variation "Winawer, advance, Bogolyubov variation"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.Bd2 Ne7 6.Nb5 Bxd2+ 7.Qxd2 O-O 8.c3 
Nbc6 9.Nf3 a6 10.Na3 cxd4 *

[Event "0x2aadcde3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B13"]
[Opening "Caro-Kann"]
[Variation "Panov-Botvinnik attack"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 Nc6 6.Bg5 Be6 7.Bxf6 exf6 8.c5 
g6 9.Bb5 Bh6 10.Nge2 O-O *

[Event "0x2ad98c7f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A04"]
[Opening "Reti opening"]

1.Nf3 c5 2.g3 Nc6 3.Bg2 g6 4.d3 Bg7 5.O-O e5 6.e4 Nge7 7.c3 d6 8.Nbd2 O-O 
9.a4 *

[Event "0x2af832f8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 Nbd7 7.Bb2 c6 8.Nbd2 
Qc7 *

[Event "0x2b51c4f9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C45"]
[Opening "Scotch game"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Be3 Qf6 6.c3 Nge7 7.g3 d5 8.Bg2 
Bxd4 9.cxd4 dxe4 10.O-O O-O *

[Event "0x2b751af6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C12"]
[Opening "French"]
[Variation "MacCutcheon variation"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.exd5 Qxd5 6.Bxf6 Bxc3+ 7.bxc3 gxf6 
8.Qd2 b6 9.Be2 Qd6 10.Bf3 Nc6 *

[Event "0x2b79676a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D22"]
[Opening "QGA"]
[Variation "Alekhine defence"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 Bg4 5.Bxc4 e6 6.h3 Bh5 7.Nc3 Nd7 8.e4 *

[Event "0x2b8efb0b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.Qd2 Be7 8.f3 
O-O 9.O-O-O d5 10.exd5 Nxd5 *

[Event "0x2b93a0b4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.Qd2 e5 8.d5 Qe8 
9.Bf3 h5 10.Nge2 Nh7 *

[Event "0x2b9673ed"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A22"]
[Opening "English"]
[Variation "Bremen, Smyslov system"]

1.c4 e5 2.Nc3 Nf6 3.g3 Bb4 4.Bg2 O-O 5.Qc2 Re8 6.a3 Bxc3 7.Qxc3 d6 *

[Event "0x2b9b7305"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Qxc4 b5 8.Qc6 
Rb8 9.Bg5 Bb7 10.Qc2 c5 *

[Event "0x2bd0659c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A93"]
[Opening "Dutch"]
[Variation "stonewall, Botwinnik variation"]

1.d4 e6 2.c4 f5 3.Nf3 Nf6 4.g3 Be7 5.Bg2 O-O 6.O-O d5 7.b3 c6 8.Qc2 Bd7 9.
Ne5 Be8 10.Bb2 Nbd7 *

[Event "0x2bee6f9d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C36"]
[Opening "KGA"]
[Variation "Abbazia defence, modern variation"]

1.e4 e5 2.f4 exf4 3.Nf3 d5 4.exd5 Nf6 5.Bc4 Nxd5 6.O-O Be6 7.Qe2 Be7 8.Nc3
c6 9.d4 O-O 10.Nxd5 cxd5 *

[Event "0x2c3653ff"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.e3 c5 7.a3 Bxc3+ 8.Qxc3 
Nbd7 9.Nf3 cxd4 10.Nxd4 O-O *

[Event "0x2c3794c3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.cxd5 
exd5 9.Ne5 Nbd7 10.f4 c5 *

[Event "0x2c39eae0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B33"]
[Opening "Sicilian defence"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Bc4 Bg7 7.Nxc6 bxc6 8.e5
Ng8 9.Qf3 e6 10.Bf4 Qa5 *

[Event "0x2c4e92d1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.g4 h6 8.Bg2 Qc7 
9.h4 h5 10.gxh5 Nxh5 *

[Event "0x2c88c3a5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Nc3 Nbd7 7.a4 c5 *

[Event "0x2cd001b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A67"]
[Opening "Benoni"]
[Variation "Taimanov variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 c5 4.d5 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Bb5+ Nfd7
9.Be2 a6 10.a4 O-O *

[Event "0x2cee92ed"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Nc3 Nbd7 7.e4 e5 8.h3 c6 
9.a4 Qc7 10.Be3 b6 *

[Event "0x2cf2a79b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B32"]
[Opening "Sicilian"]
[Variation "Labourdonnais-Loewenthal variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 a6 6.Nd6+ Bxd6 7.Qxd6 Qf6 8.
Qa3 Qg6 9.Be3 Qxe4 10.Nc3 Qb4 *

[Event "0x2d0ee2f5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Qd3 Ba6 5.a3 c5 6.dxc5 Bxc5 7.b4 Be7 8.Nc3 O-O
9.e4 Bb7 10.Bb2 a5 *

[Event "0x2d1fd61"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A88"]
[Opening "Dutch"]
[Variation "Leningrad, main variation with c6"]

1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.O-O d6 7.Nc3 c6 8.d5 e5 9.
dxc6 bxc6 10.b3 e4 *

[Event "0x2d272f6e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Bd3 Nbd7 8.Nf3 
Nc5 9.O-O Be7 10.a4 O-O *

[Event "0x2d528448"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.f4 e5 8.Nde2 
Be7 9.Qd2 a6 *

[Event "0x2d7073cf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A19"]
[Opening "English"]
[Variation "Mikenas-Carls, Sicilian variation"]

1.c4 Nf6 2.Nc3 e6 3.e4 c5 4.e5 Ng8 5.Nf3 Nc6 6.d4 cxd4 7.Nxd4 Nxe5 8.Ndb5 
a6 9.Nd6+ Bxd6 10.Qxd6 f6 11.Be3 Ne7 12.Bb6 Nf5 13.Bxd8 Nxd6 14.Bc7 Ke7 
15.c5 Ne8 16.Bb6 d5 *

[Event "0x2d9bf753"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D97"]
[Opening "Gruenfeld"]
[Variation "Russian, Alekhine (Hungarian) variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 a6 8.Be2 b5
9.Qb3 Nc6 10.e5 Be6 *

[Event "0x2d9e61af"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E55"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system, Bronstein variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4 
Nbd7 9.Qe2 a6 10.a3 cxd4 *

[Event "0x2da78325"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 c6 7.Bd3 Nbd7 8.Qc2 
O-O 9.Nge2 Re8 10.O-O Nf8 *

[Event "0x2df1bf85"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Bf1 Bg4 8.d3 e6 
9.Nbd2 Nd7 10.h3 Bh5 *

[Event "0x2df334f2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Bd2 Bxd2+ 6.Nbxd2 exd4 7.Bxc4 Nc6 
8.O-O Qf6 9.b4 a6 10.a4 *

[Event "0x2df4d81e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A67"]
[Opening "Benoni"]
[Variation "Taimanov variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 c5 4.d5 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Bb5+ Nfd7
9.Nf3 O-O 10.O-O a6 *

[Event "0x2e106656"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A86"]
[Opening "Dutch"]
[Variation "Leningrad variation"]

1.c4 f5 2.d4 Nf6 3.g3 g6 4.Bg2 Bg7 5.b3 c6 6.Nf3 O-O 7.O-O d6 8.Bb2 Na6 9.
Nc3 Rb8 10.d5 Bd7 *

[Event "0x2e125611"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.a3 Bxc3 
9.bxc3 dxc4 10.Bxc4 Nbd7 *

[Event "0x2e15b479"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.Qd2 e5 8.Nf3 Qe8 
*

[Event "0x2e162de0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B31"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (with ...g6, without ...d6)"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.Bxc6 bxc6 5.O-O Bg7 6.Re1 Qc7 7.c3 d6 8.h3 
Rb8 9.d4 cxd4 10.cxd4 Nf6 *

[Event "0x2e16519e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be3 Qc7 7.Bd3 Nf6 8.O-O 
Bd6 9.f4 Bc5 10.Nf5 Bxe3+ *

[Event "0x2e468cb4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A04"]
[Opening "Reti opening"]

1.Nf3 c5 2.b3 Nc6 3.Bb2 d6 4.g3 e5 5.Bg2 f5 6.O-O Be7 7.c4 Bf6 8.Nc3 Nge7 
*

[Event "0x2e49163e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nde2 Be6 8.f4 
Nbd7 9.f5 Bc4 10.Nc1 d5 *

[Event "0x2e4f1a13"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C51"]
[Opening "Evans gambit"]
[Variation "Fraser attack"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 exd4 7.O-O d6 8.cxd4 
Bb6 9.Nc3 Bg4 10.Qa4 Bd7 *

[Event "0x2e51a897"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 Bb4+ 5.Bd2 Be7 6.Bg2 O-O 7.O-O c6 8.Qb3 b6 
9.Nc3 Bb7 10.Rac1 Nbd7 *

[Event "0x2e63f66f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 c5 7.O-O Bxd2 8.Qxd2 
cxd4 9.Qxd4 Nc6 10.Qd2 O-O *

[Event "0x2e774f81"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A35"]
[Opening "English"]
[Variation "symmetrical variation"]

1.c4 c5 2.Nc3 Nc6 3.Nf3 g6 4.d4 cxd4 5.Nxd4 Bg7 6.Nc2 Bxc3+ 7.bxc3 Qa5 8.
Bd2 Nf6 9.f3 Ne5 10.e4 d6 *

[Event "0x2ea1ad09"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, Benko variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Qb6 7.Nxc6 bxc6 8.
O-O e6 9.b3 Be7 10.Bb2 O-O *

[Event "0x2ea2a21c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.cxd5 
exd5 9.Ne5 c5 10.Ne2 c4 *

[Event "0x2ec01da2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A22"]
[Opening "English"]
[Variation "Bremen, Smyslov system"]

1.c4 e5 2.Nc3 Nf6 3.g3 Bb4 4.Bg2 O-O 5.e4 Bxc3 6.bxc3 *

[Event "0x2ecb6a65"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D98"]
[Opening "Gruenfeld"]
[Variation "Russian, Smyslov variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 
Nfd7 9.O-O-O Nb6 10.Qc5 e5 *

[Event "0x2eccd2e5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C41"]
[Opening "Philidor"]
[Variation "Larsen variation"]

1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Nxd4 g6 5.Nc3 Bg7 6.g3 Nc6 7.Be3 Nf6 8.h3 O-O
9.Bg2 Ne5 10.O-O c6 *

[Event "0x2f081215"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A80"]
[Opening "Dutch"]

1.d4 f5 2.Nf3 Nf6 3.g3 g6 4.Bg2 Bg7 5.O-O d6 6.c4 O-O 7.Nc3 Qe8 8.d5 a5 9.
Be3 Na6 10.Qd2 Bd7 *

[Event "0x2f0eee06"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be3 Nf6 7.Bd3 d5 8.exd5 
exd5 9.O-O Bd6 10.Bf5 *

[Event "0x2f41be3a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A28"]
[Opening "English"]
[Variation "four knights, 4.e3"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e3 Bb4 5.Qc2 O-O 6.Nd5 Re8 7.Bd3 g6 8.a3 Bf8
9.Nxf6+ Qxf6 10.Be4 d6 11.b4 Bg7 12.Bb2 Qe7 *

[Event "0x2f503b1f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B06"]
[Opening "Robatsch defence"]

1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.Bc4 d6 5.Qf3 e6 6.Nge2 b5 7.Bb3 a5 8.a3 Ba6 9.
O-O Nd7 10.Bf4 Qe7 *

[Event "0x2f62d71c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be3 Nf6 7.Bd3 Qc7 8.O-O 
b5 9.Nxc6 Qxc6 10.a3 Bc5 *

[Event "0x2faadcc2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B95"]
[Opening "Sicilian"]
[Variation "Najdorf, 6...e6"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.Qf3 Be7 8.O-O-O 
Nbd7 9.Be2 Qc7 10.Rhe1 O-O *

[Event "0x2fb3fc97"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A65"]
[Opening "Benoni"]
[Variation "6.e4"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.h3 Bg7 8.Bd3 O-O 
9.Bg5 h6 10.Be3 Na6 *

[Event "0x2fc51787"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.Bh4 Nxc3 7.bxc3 dxc4 8.
Qa4+ Nd7 9.e3 O-O 10.Qxc4 *

[Event "0x2fcccc3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bd3 Nc6 7.Ne2 Nb4 8.Be4 
c6 9.Nbc3 Be6 10.Be3 N4d5 *

[Event "0x2fe2ca5e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.Nf3 Qf5 7.Qd1 e5 *

[Event "0x2ff64132"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B60"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 Qb6 7.Nb3 e6 8.Be2 
a6 9.O-O Be7 10.Qd2 O-O *

[Event "0x2fff38b4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.c3 Nf6 5.Qe2 a6 6.Ba4 e6 7.O-O Be7 8.d4 b5 
9.Bc2 cxd4 10.cxd4 Bb7 *

[Event "0x301f73c8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 c5 5.Nf3 Nf6 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
b5 9.Bd3 Nc6 10.Nc3 Nb4 *

[Event "0x3033a552"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B16"]
[Opening "Caro-Kann"]
[Variation "Bronstein-Larsen variation"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Nxf6+ gxf6 6.Bc4 Bf5 7.c3 e6 8.Qf3
Nd7 9.Ne2 h5 10.Nf4 h4 *

[Event "0x303660b2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B58"]
[Opening "Sicilian"]
[Variation "classical"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 g6 7.Nb3 Bg7 8.O-O 
O-O 9.Bg5 a6 10.f4 Be6 *

[Event "0x3051f970"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.c4 Bg7 5.Nc3 d6 6.d5 O-O 7.Nh3 Nbd7 8.O-O Ne5 
9.b3 c6 10.Bb2 Bd7 *

[Event "0x30603768"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A24"]
[Opening "English"]
[Variation "Bremen system with ...g6"]

1.c4 e5 2.Nc3 Nf6 3.g3 g6 4.Bg2 Bg7 5.e4 d6 6.Nge2 O-O *

[Event "0x306e5777"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.e3 Nbd7 8.cxd5 
exd5 9.Bb5 O-O 10.O-O c6 *

[Event "0x3092125c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B53"]
[Opening "Sicilian, Chekhover variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.Be3 Nc6 6.Qb6 Qxb6 7.Bxb6 Nf6 8.Nc3
Bg4 9.Be2 Rc8 10.O-O-O g6 *

[Event "0x3096a996"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B62"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Keres variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd3 a6 8.O-O-O 
Bd7 9.f4 Qc7 10.Be2 Be7 *

[Event "0x30b03b3d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Bb4+ 5.Nbd2 O-O 6.Bg2 dxc4 7.Qc2 c5 8.dxc5 
c3 9.bxc3 Bxc5 10.O-O Qc7 *

[Event "0x3107a1bf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E83"]
[Opening "King's Indian"]
[Variation "Saemisch, 6...Nc6"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6 7.Nge2 e5 8.d5 Ne7 *

[Event "0x311063d2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.c3 Be7 7.a4 b4 8.cxb4 cxb4 
9.Nbd2 O-O 10.Nb3 d6 *

[Event "0x31577082"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A47"]
[Opening "Queen's Indian defence"]

1.d4 Nf6 2.Nf3 b6 3.Bg5 Bb7 4.Nbd2 c5 5.e3 e6 6.Bd3 Be7 7.c3 O-O 8.O-O Nc6
9.Qe2 Nd5 10.Bxe7 Qxe7 *

[Event "0x317870dc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian"]
[Variation "dragon variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O O-O 8.Bg5 
Nc6 9.Nb3 a6 10.a4 Be6 *

[Event "0x31808fb0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D98"]
[Opening "Gruenfeld"]
[Variation "Russian, Smyslov variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 
Nfd7 9.O-O-O Na6 *

[Event "0x3198c715"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B53"]
[Opening "Sicilian, Chekhover variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Bd7 5.c4 Nc6 6.Qd2 g6 7.b3 Bg7 8.Nc3 Nf6
9.Bb2 Bg4 10.Be2 O-O *

[Event "0x31b83f1e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 Nc6 6.O-O Rb8 7.Nc3 b5 8.Ne5 
Nxe5 9.dxe5 Nd7 10.Bf4 b4 *

[Event "0x31bd42ff"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A17"]
[Opening "English"]
[Variation "Nimzo-English opening"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4 4.Qc2 O-O 5.a3 Bxc3 6.Qxc3 b6 7.g3 Bb7 8.Bg2 
d5 9.cxd5 Nxd5 *

[Event "0x31e0cdf9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Bg2 Nc6 6.O-O Rb8 7.e3 Bd7 8.Qe2 b5 
9.a4 a6 10.axb5 axb5 *

[Event "0x31ea2b0b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.g3 dxc4 6.Qxc4 b5 7.Qb3 Bb7 8.Bg2 
Nbd7 9.O-O a6 10.a4 c5 *

[Event "0x31fdadcb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Bxd2+ 7.Qxd2 O-O 8.Nc3
Ne4 9.Nxe4 Bxe4 10.O-O d6 *

[Event "0x31ff5be3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Qa4+ Bd7 6.Qxc4 Bc6 7.Bg2 Bd5 8.Qb5+
Bc6 9.Qd3 Be4 10.Qd1 c5 *

[Event "0x3216acd1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.Nh3 d6 5.Nc3 Bg7 6.d5 c6 7.Nf4 e5 8.dxe6 d5 9.
h4 Qe7 10.h5 g5 *

[Event "0x321bbc22"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be3 Nf6 7.Bd3 d5 8.O-O *

[Event "0x32219749"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]

1.Nf3 c5 2.e4 d6 3.Bb5+ Nd7 4.Nc3 Nf6 5.d4 a6 6.Bxd7+ Nxd7 7.dxc5 Nxc5 8.
Be3 e6 9.Bxc5 dxc5 10.Qxd8+ Kxd8 *

[Event "0x324af0f2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C53"]
[Opening "Giuoco Piano"]
[Variation "centre-holding variation"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Qe7 5.d4 Bb6 6.d5 Nd8 7.O-O d6 8.Bd3 Nf6 
9.Nbd2 c6 10.Nc4 Bc7 *

[Event "0x3255563e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A67"]
[Opening "Benoni"]
[Variation "Taimanov variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 c5 4.d5 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Bb5+ Nfd7
9.Bd3 Qh4+ 10.Kf1 Qe7 *

[Event "0x326e1469"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E55"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system, Bronstein variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 O-O 6.Nf3 d5 7.O-O dxc4 8.Bxc4 
Nbd7 9.Qe2 a6 10.a4 Qc7 *

[Event "0x32806fe1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.d4 a6 5.Bxd7+ Bxd7 6.O-O cxd4 7.Nxd4 Nf6 8.
Nc3 e5 9.Nde2 Be7 10.Bg5 Be6 *

[Event "0x32a751d2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ Bc6 8.Qb3 
dxc4 9.Qxc4 O-O 10.Bxf6 Bxf6 *

[Event "0x32bb785c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Nc3 Nbd7 7.e4 e5 8.h3 Re8 
9.Re1 exd4 10.Nxd4 Nc5 *

[Event "0x32d1d046"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.cxd5 exd5 5.Nc3 Nf6 6.Bg5 Bf5 7.e3 Nbd7 8.Bd3 
Bxd3 9.Qxd3 Be7 10.O-O O-O *

[Event "0x32d38b39"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C56"]
[Opening "two knights defence"]
[Variation "Canal variation"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Bc4 Nf6 5.O-O Nxe4 6.Re1 d5 7.Nc3 dxc4 8.
Rxe4+ Be6 9.Nxd4 Nxd4 10.Rxd4 Qc8 *

[Event "0x32df3e4a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.e3 f5 5.Nc3 Nf6 6.Be2 Bd6 7.Ne5 O-O 8.O-O Nbd7 
9.f4 Ne4 10.Nxe4 fxe4 *

[Event "0x32eb7b88"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A94"]
[Opening "Dutch"]
[Variation "stonewall with Ba3"]

1.d4 e6 2.c4 f5 3.Nf3 Nf6 4.g3 d5 5.Bg2 c6 6.O-O Be7 7.b3 O-O 8.Ba3 Bxa3 
9.Nxa3 Qe7 10.Nc2 Bd7 *

[Event "0x3334f0df"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.g3 Bd6 6.Bg2 O-O 7.O-O Nbd7 8.Rd1 Qe7
9.Nbd2 Re8 10.b3 e5 *

[Event "0x334d216f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A04"]
[Opening "Reti opening"]

1.Nf3 c5 2.g3 Nc6 3.Bg2 g6 4.d4 cxd4 5.Nxd4 Bg7 6.Nxc6 bxc6 7.O-O Rb8 8.
Nd2 Nf6 9.c4 O-O *

[Event "0x3359dae2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 Nc6 5.c4 cxd4 6.Nxd4 Bc5 7.Nxc6 *

[Event "0x335d3b06"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.e3 c5 7.Bd2 Bxc3 8.Bxc3 
cxd4 9.Bxd4 Nc6 10.Bc3 Bd7 *

[Event "0x336a0b85"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.Bd2 dxc4
9.Bxc4 Nbd7 10.Qe2 c5 *

[Event "0x3394d2d9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian"]
[Variation "dragon variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O Nc6 8.Nb3 
O-O 9.f4 a5 10.a4 Be6 *

[Event "0x339542e5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B60"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 a6 7.Qd2 Nxd4 8.Qxd4
Qa5 9.f4 e6 10.O-O-O Nd7 *

[Event "0x33ac23d0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A21"]
[Opening "English opening"]

1.c4 e5 2.Nc3 d6 3.d4 exd4 4.Qxd4 Nc6 5.Qd2 g6 6.b3 Bg7 7.Bb2 Nf6 *

[Event "0x33dffd8b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, not Scheveningen"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e5 7.Nde2 Be6 8.Bb3 
Be7 9.O-O O-O 10.Kh1 Na5 *

[Event "0x33ec319f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A12"]
[Opening "English"]
[Variation "London defensive system"]

1.c4 c6 2.Nf3 d5 3.b3 Nf6 4.g3 Bf5 5.Bg2 e6 6.Bb2 Nbd7 7.O-O h6 8.d3 Be7 
9.Nbd2 O-O 10.a3 a5 11.Qc2 Bh7 *

[Event "0x33faf833"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A00"]
[Opening "Polish (Sokolsky) opening"]

1.b4 f5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.c4 O-O 6.Nf3 d6 7.d4 Qe8 8.Be2 Nbd7 *

[Event "0x3405a03e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E18"]
[Opening "Queen's Indian"]
[Variation "old main line, 7.Nc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 O-O 7.O-O Ne4 8.Nxe4 
Bxe4 9.Ne1 d5 10.Qa4 Bxg2 *

[Event "0x3410d346"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B97"]
[Opening "Sicilian"]
[Variation "Najdorf, 7...Qb6"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 
Qxb2 9.Nb3 Nc6 10.Bd3 Qa3 *

[Event "0x3415eb62"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E38"]
[Opening "Nimzo-Indian"]
[Variation "classical, 4...c5"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 Na6 6.a3 Bxc3+ 7.Qxc3 Nxc5 8.b4
Nce4 9.Qb2 *

[Event "0x342ba3ce"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C80"]
[Opening "Ruy Lopez"]
[Variation "open, 8...Be6"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.Be3 Bc5 10.Qe2 O-O *

[Event "0x342d6c3a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B30"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (without ...d6)"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 e6 4.O-O Nge7 5.c3 d5 6.exd5 Qxd5 7.d4 cxd4 8.c4 
Qh5 9.Nxd4 Qxd1 10.Rxd1 Bd7 *

[Event "0x342ea692"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B06"]
[Opening "Robatsch defence"]
[Variation "two knights, Suttles variation"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Nf3 c6 5.a4 a5 6.Be2 Nf6 7.O-O O-O 8.h3 Qc7 9.
Be3 e5 10.Qd2 Nbd7 *

[Event "0x3431f5c4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C53"]
[Opening "Giuoco Piano"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d3 a6 6.Nbd2 d6 7.Nf1 O-O 8.Ng3 h6 
9.Bb3 Ba7 10.O-O Re8 *

[Event "0x34651ae8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A76"]
[Opening "Benoni"]
[Variation "classical, 9...Re8"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 
9.O-O Re8 10.Qc2 a6 *

[Event "0x34ad8dca"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.f4 b5 8.Bd3 *

[Event "0x350509f6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C16"]
[Opening "French"]
[Variation "Winawer, advance variation"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.Bd2 b6 6.Bb5+ Bd7 7.Bd3 c5 8.a3 Bxc3 
9.Bxc3 Nbc6 10.Nf3 Ng6 *

[Event "0x35583ea4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D98"]
[Opening "Gruenfeld"]
[Variation "Russian, Smyslov variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 
Nfd7 9.Rd1 Nb6 10.Qb3 Nc6 *

[Event "0x355aa841"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B92"]
[Opening "Sicilian"]
[Variation "Najdorf, Opovcensky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be6 8.O-O 
Nbd7 9.Be3 Be7 10.f3 b5 *

[Event "0x355d668d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 c5 5.Nf3 a6 6.O-O Nf6 7.Bd3 cxd4 8.exd4 
Be7 9.Ne5 Nc6 10.Nxc6 bxc6 *

[Event "0x35b1abb3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C48"]
[Opening "Four knights"]
[Variation "Rubinstein counter-gambit"]

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Nd4 5.Ba4 c6 6.O-O b5 7.Bb3 Nxb3 8.axb3 
d6 9.d4 Qc7 10.Bg5 Be7 *

[Event "0x35cafa95"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B93"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Nbd7 7.Nf3 Qc7 8.Bd3 
b5 9.O-O b4 10.Ne2 Bb7 *

[Event "0x36043572"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 c5 6.O-O Nc6 7.Ne5 Bd7 8.Na3 
cxd4 9.Naxc4 Bc5 10.Qb3 O-O *

[Event "0x36122441"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B53"]
[Opening "Sicilian, Chekhover variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.Be3 Nf6 6.Nc3 Nbd7 7.O-O-O e5 8.Qa4
Rb8 9.Qb3 Be7 10.Bc4 O-O *

[Event "0x3623d5c8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 d6 7.Be3 Nf6 8.f4 Be7
9.Qd2 O-O 10.O-O-O Nd7 *

[Event "0x362b94bc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 Nc6 7.g5 Nd7 8.f4 *

[Event "0x3642b071"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 c5 5.Nf3 Nf6 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
b5 9.Bd3 Nc6 10.Rd1 Qb6 *

[Event "0x36771166"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A31"]
[Opening "English"]
[Variation "symmetrical, Benoni formation"]

1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 d5 6.cxd5 Bc5 7.N5c3 O-O 8.e3 
e4 9.Nd2 Re8 10.Bb5 Re5 *

[Event "0x36787e50"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B56"]
[Opening "Sicilian"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nbd7 6.Bc4 a6 7.O-O g6 8.Bg5 
Bg7 9.Re1 h6 10.Bh4 Ne5 *

[Event "0x3684c7e7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 c5 7.Qe2 a6 8.dxc5 
Bxc5 9.O-O Nc6 10.a3 b5 *

[Event "0x368fb3f8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "QGD Slav"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nbd2 c5 6.Be2 *

[Event "0x3694bd71"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 Nf6 5.Nc3 e6 6.Bxc4 exd5 7.exd5 a6 8.Bf4 
Bd6 9.Qe2+ Kf8 10.Bxd6+ Qxd6 *

[Event "0x36b4387d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B09"]
[Opening "Pirc"]
[Variation "Austrian attack"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.e5 dxe5 6.dxe5 Qxd1+ 7.Kxd1 Ng4 8.Ke1
c6 9.h3 Nh6 10.g4 f6 *

[Event "0x36e0c18a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D86"]
[Opening "Gruenfeld"]
[Variation "exchange, classical variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Ne2 
Nc6 9.Be3 O-O 10.O-O Qc7 *

[Event "0x36e1e7c0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C19"]
[Opening "French"]
[Variation "Winawer, advance, positional main line"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.Nf3 c5 6.a3 Bxc3+ 7.bxc3 Nbc6 8.a4 
Qa5 9.Qd2 f6 10.exf6 gxf6 *

[Event "0x370041b2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B56"]
[Opening "Sicilian"]

1.e4 c5 2.Nf3 Nc6 3.Nc3 d6 4.d4 cxd4 5.Nxd4 Nf6 6.g3 g6 7.Nde2 b6 8.Bg2 
Ba6 9.O-O Bg7 10.b3 O-O *

[Event "0x3732f87a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 c5 7.d5 e6 8.Qd2 h6 9.
Be3 exd5 10.cxd5 a6 *

[Event "0x373b5164"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.Nbd2 Ne4 8.b3 c5 
9.e3 cxd4 10.exd4 Nc6 *

[Event "0x374fd3d5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.a4 e6 7.g3 b6 8.Bg2 Bb7 
9.O-O Qc7 10.g4 h6 *

[Event "0x37527d55"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B30"]
[Opening "Sicilian defence"]

1.e4 c5 2.Nf3 Nc6 3.Nc3 e5 4.Bc4 d6 5.d3 h6 6.O-O g6 7.Ne1 Bg7 8.f4 Nf6 9.
Nd5 Nxd5 10.Bxd5 exf4 *

[Event "0x375da29e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 a5 7.a4 Na6 8.Bb2 c6 9.
Nbd2 d5 10.Re1 Bf5 *

[Event "0x376807e6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "QGD Slav"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nbd2 Nbd7 6.Bd3 Qc7 7.O-O Be7 8.Qe2 
O-O 9.e4 dxe4 10.Nxe4 c5 *

[Event "0x377bb4c5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B10"]
[Opening "Caro-Kann"]
[Variation "anti-anti-Caro-Kann defence"]

1.e4 c6 2.c4 d5 3.cxd5 cxd5 4.exd5 Qxd5 5.Nc3 Qd6 6.d4 Nf6 7.Nge2 e6 8.g3 
Bd7 9.Bf4 Qb6 10.Bg2 Bc6 *

[Event "0x377f83b2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Bd2 Bxd2+ 6.Qxd2 exd4 7.Qxd4 Nf6 8.
Nc3 Be6 9.Qxd8+ Kxd8 10.Nd4 Re8 *

[Event "0x379fd39"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B76"]
[Opening "Sicilian"]
[Variation "dragon, Yugoslav attack, Rauser variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 
O-O 9.O-O-O Be6 10.Kb1 Qc8 *

[Event "0x37f61d31"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
Qc7 9.e4 Ng4 10.e5 Nxf2 *

[Event "0x3811cbc5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B67"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 h6 10.Bh4 g5 *

[Event "0x382b8d7c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Qxc4 c5 8.dxc5 
Bxc5 9.Qc2 Qc7 10.Nc3 b5 *

[Event "0x383bf38f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B04"]
[Opening "Alekhine's defence"]
[Variation "modern variation"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 c6 5.c4 Nc7 6.Nc3 dxe5 7.Nxe5 Nd7 8.Nf3 g6
9.Bf4 Bg7 10.Be2 O-O *

[Event "0x386ac972"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B84"]
[Opening "Sicilian"]
[Variation "Scheveningen (Paulsen), classical variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 a6 7.f4 Be7 8.Be3 Qc7
9.O-O O-O 10.g4 Re8 *

[Event "0x38701923"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Qxc4 b5 8.Qc6 
Rb8 9.O-O Bb7 10.Qc2 c5 *

[Event "0x387fdea8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 Nc6 7.Bb2 e5 8.dxe5 Nd7
9.Nbd2 Ndxe5 10.Nxe5 Nxe5 *

[Event "0x3884daa8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C78"]
[Opening "Ruy Lopez"]
[Variation "Archangelsk (counterthrust) variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Bb7 7.d3 Bd6 8.a4 O-O 
9.Nc3 b4 10.Ne2 h6 *

[Event "0x389197eb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.O-O Nc6 6.Nxd4 Qb6 7.Nb3 d5 8.Nc3 
Be7 9.e4 dxe4 10.Nxe4 Nxe4 *

[Event "0x38a388ed"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C88"]
[Opening "Ruy Lopez"]
[Variation "closed, anti-Marshall 8.a4"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.a4 b4 
9.c3 d6 10.h3 Rb8 *

[Event "0x38f215f5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A03"]
[Opening "Bird's opening"]

1.f4 d5 2.Nf3 Nf6 3.e3 Bg4 4.h3 Bxf3 5.Qxf3 Nbd7 6.Nc3 c6 7.d4 e6 8.a3 Be7
9.Bd3 c5 *

[Event "0x39125fca"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.a3 Bxc3+ 8.bxc3 
Bb7 9.O-O dxc4 10.Bxc4 Nc6 *

[Event "0x391541bf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B09"]
[Opening "Pirc"]
[Variation "Austrian attack, 6.e5"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.e5 Nfd7 7.h4 c5 8.h5 cxd4 
9.Qxd4 dxe5 10.Qf2 e4 *

[Event "0x393f1d1e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C45"]
[Opening "Scotch"]
[Variation "Potter variation"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Nb3 Bb6 6.a4 a6 7.Nc3 Nf6 8.Bg5 
h6 9.Bh4 d6 10.Bd3 Be6 *

[Event "0x3945ee34"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A27"]
[Opening "English"]
[Variation "three knights system"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 f5 4.d4 e4 5.Nd2 Nf6 6.e3 Bb4 *

[Event "0x396d5b40"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Nge7 7.Nb3 d6 8.a4 b6 
9.Bg2 Bb7 10.O-O Nc8 *

[Event "0x3971d64a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A15"]
[Opening "English opening"]

1.c4 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 O-O 5.e3 c6 6.Be2 d5 7.O-O Bg4 8.Qb3 Nbd7
9.h3 Bxf3 10.Bxf3 e6 *

[Event "0x398ef05"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.Bh4 Nxc3 7.bxc3 dxc4 8.e3 
b5 9.a4 c6 10.Nd2 a6 *

[Event "0x3a0fd290"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B56"]
[Opening "Sicilian"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bd7 6.Bg5 e6 7.f3 a6 8.Qd2 Be7
9.O-O-O b5 10.h4 h6 *

[Event "0x3a247c15"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 d5 6.c4 e5 7.Nf3 d4 8.O-O Nc6 
9.e3 d3 10.Nc3 Bb4 *

[Event "0x3a4d58e1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, Tal variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Nc6 7.Be3 Be7 8.Qf3 
Bd7 9.O-O-O Nxd4 10.Bxd4 Bc6 *

[Event "0x3a74f108"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bd3 Nc6 7.Be3 Nb4 8.Be4 
f5 9.exf6 exf6 10.Nc3 f5 *

[Event "0x3a7bea6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B88"]
[Opening "Sicilian"]
[Variation "Sozin, Leonhardt variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3 Be7 8.Be3 
O-O 9.O-O Na5 10.f4 Bd7 *

[Event "0x3a98f447"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B89"]
[Opening "Sicilian"]
[Variation "Sozin, 7.Be3"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.Bc4 a6 8.Bb3 
Qc7 9.f4 Be7 10.Qf3 O-O *

[Event "0x3aa734cb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D58"]
[Opening "QGD"]
[Variation "Tartakower (Makagonov-Bondarevsky) system"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 O-O 6.e3 h6 7.Bh4 b6 8.Bd3 dxc4 
9.Bxc4 Bb7 10.O-O Nbd7 *

[Event "0x3aab4944"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.Qd2 Be7 8.f3 d5
9.Bb5 Bd7 10.exd5 exd5 *

[Event "0x3aab74ef"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A37"]
[Opening "English"]
[Variation "symmetrical, Botvinnik system reversed"]

1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 e5 6.O-O Nge7 7.d3 O-O *

[Event "0x3ab50f33"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B12"]
[Opening "Caro-Kann"]
[Variation "advance variation"]

1.e4 c6 2.d4 d5 3.e5 Bf5 4.c3 e6 5.Be3 Nd7 6.Nd2 Qb6 7.Qb3 c5 8.Qxb6 axb6 
9.Bb5 c4 10.Ne2 Ne7 *

[Event "0x3ab95e5c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B16"]
[Opening "Caro-Kann"]
[Variation "Bronstein-Larsen variation"]

1.Nc3 d5 2.e4 dxe4 3.Nxe4 Nf6 4.Nxf6+ gxf6 5.d4 c6 6.Be2 Bf5 7.Nf3 Qc7 8.
O-O Nd7 9.c4 O-O-O 10.Be3 e6 *

[Event "0x3ab9dbbb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 c5 7.O-O O-O 8.Bxb4 
cxb4 9.Nbd2 d6 10.Ne1 *

[Event "0x3b03ee0f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 c5 7.d5 a6 8.a4 e6 9.Qd2
exd5 10.cxd5 Nbd7 *

[Event "0x3b23ba18"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f3 Qb6 7.g4 Nc6 8.Nb3 e6 
9.Qe2 d5 10.Be3 d4 *

[Event "0x3b646bbf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 h6 7.Be3 c5 8.d5 e6 9.
Qd2 exd5 10.exd5 Kh7 *

[Event "0x3b7e582a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 c5 7.Qe2 a6 8.dxc5 
Bxc5 9.O-O Nc6 10.a3 Bd6 *

[Event "0x3ba5b40c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
Qa5 9.Nf3 Nc6 10.Rc1 Bg4 *

[Event "0x3bbbb394"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni"]
[Variation "Nimzovich (knight's tour) variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.Nd2 Nbd7 8.Nc4 
Nb6 9.e4 Nxc4 10.Bxc4 Bg7 *

[Event "0x3bc19f4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 c5 5.Nf3 a6 6.O-O Nf6 7.Bd3 Nbd7 8.Qe2 b6
9.Rd1 Bb7 10.dxc5 *

[Event "0x3bc439b9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.h4 Be7 8.Rh3 *

[Event "0x3bc43a14"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.Be2 a6 8.O-O 
Qc7 9.a4 Be7 10.f4 O-O *

[Event "0x3bcb3274"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D73"]
[Opening "Neo-Gruenfeld, 5.Nf3"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.c4 dxc4 6.Na3 O-O 7.O-O Nc6 8.Nxc4 
Be6 9.b3 a5 10.a4 *

[Event "0x3be6fe69"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E06"]
[Opening "Catalan"]
[Variation "closed, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 Be7 5.Bg2 O-O 6.O-O dxc4 7.Qc2 a6 8.a4 Bd7 
9.Rd1 Nc6 10.Qxc4 Nb4 *

[Event "0x3bec2b73"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 c5 5.Nf3 Nf6 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
b5 9.Bd3 Nc6 10.Nc3 Bb7 *

[Event "0x3c0576eb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A21"]
[Opening "English opening"]

1.c4 e5 2.Nc3 f5 3.e3 Nf6 4.d4 e4 5.Nh3 g6 6.Be2 Bg7 7.b4 Nc6 8.Qb3 Ne7 9.
c5 d5 10.cxd6 cxd6 *

[Event "0x3c0ee756"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A09"]
[Opening "Reti accepted"]

1.Nf3 d5 2.c4 dxc4 3.Qa4+ Nd7 4.g3 a6 5.Qxc4 b5 6.Qc2 Bb7 7.Bg2 c5 8.O-O 
Rc8 9.a4 Ngf6 10.d3 e6 *

[Event "0x3c2352c5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B84"]
[Opening "Sicilian"]
[Variation "Scheveningen (Paulsen), classical variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 a6 7.f4 Be7 8.Be3 Qc7
9.a4 *

[Event "0x3c64c5e5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.O-O Nc6 6.Nxd4 Qb6 7.Nb3 d5 8.Be3 
Qc7 9.N1d2 *

[Event "0x3c98efc4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A44"]
[Opening "Semi-Benoni (`blockade variation')"]

1.d4 c5 2.d5 e5 3.e4 d6 4.Nc3 a6 5.a4 Ne7 6.Nf3 Ng6 7.h4 h5 8.g3 Be7 *

[Event "0x3ca8d26a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C22"]
[Opening "Centre game"]
[Variation "Paulsen attack"]

1.e4 e5 2.d4 exd4 3.Qxd4 Nc6 4.Qe3 Be7 5.Nc3 Nf6 6.Bd2 d5 7.exd5 Nxd5 8.
Qg3 Nxc3 9.Bxc3 Bf6 10.Bb5 O-O *

[Event "0x3cbf82aa"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ Bc6 8.Qb3 
dxc4 9.Qxc4 O-O 10.Rd1 Nd5 *

[Event "0x3cecec5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.d4 Nf6 5.Nc3 a6 6.Bxd7+ Nxd7 7.O-O e6 8.Bg5 
Qc7 9.d5 e5 10.a4 g6 *

[Event "0x3cfd4a75"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 dxc4 7.e4 c5 8.dxc5 
Nbd7 9.c6 bxc6 10.Bxc4 Nb6 *

[Event "0x3d0d49a0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A17"]
[Opening "English"]
[Variation "Queens Indian, Romanishin variation"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 b6 4.e4 Bb7 5.Bd3 *

[Event "0x3d1910a8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.c3 Be7 *

[Event "0x3d24a17f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn"]
[Variation "Torre attack"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.c3 h6 5.Bh4 cxd4 6.cxd4 Qb6 7.Qc2 Nc6 8.e3 d5
9.Nc3 Bd7 10.Be2 Ne4 *

[Event "0x3d25f9e5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D97"]
[Opening "Gruenfeld"]
[Variation "Russian, Alekhine (Hungarian) variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 a6 8.Be2 b5
9.Qb3 c5 10.dxc5 Bb7 *

[Event "0x3d4d3aa2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 Bb4+ 5.Nbd2 dxc4 6.Bg2 Nc6 7.O-O Bxd2 8.
Bxd2 Nxd4 9.Nxd4 *

[Event "0x3d5c77e9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Qf3 Qb6 8.a3 Nc6 
9.Nb3 Qc7 10.g4 b5 *

[Event "0x3d74d62e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B97"]
[Opening "Sicilian"]
[Variation "Najdorf, 7...Qb6"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd3 Nc6
9.O-O-O Bd7 10.Be2 Rc8 *

[Event "0x3d753eec"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be7 8.Qd2 
O-O 9.f3 Nbd7 10.g4 b5 *

[Event "0x3d9de567"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B53"]
[Opening "Sicilian, Chekhover variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Bd7 6.Bxc6 Bxc6 7.c4 Nf6 8.Nc3
e6 9.O-O Be7 10.Rd1 O-O *

[Event "0x3da4cfa7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 c5 7.O-O Bxd2 8.Qxd2 
cxd4 9.Qxd4 Nc6 10.Qf4 Qb8 *

[Event "0x3ddc398e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 a6 7.O-O c5 8.Bd3 cxd4
9.exd4 Be7 10.Nc3 O-O *

[Event "0x3de4aca0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.Bg5 c5 6.c3 cxd4 7.cxd4 Qa5+ 8.Nbd2 
Ne4 9.O-O Nxg5 10.Nxg5 Bxg2 *

[Event "0x3e2b205d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.cxd5 
exd5 9.Ne5 Nbd7 10.f4 Bxc3 *

[Event "0x3e2d9866"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 d5 6.O-O c6 7.cxd5 cxd5 8.Ne5 
Nbd7 9.Nc3 e6 10.Bf4 Nh5 *

[Event "0x3e48042d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B32"]
[Opening "Sicilian"]
[Variation "Flohr variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qc7 5.Nb5 Qb8 6.c4 Nf6 7.N5c3 e6 8.Be2 
Bc5 9.O-O h5 10.g3 h4 *

[Event "0x3e4c75f0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 Nc6 6.Qa4 Bb4+ 7.Bd2 Nd5 8.Bxb4 
Nxb4 9.O-O a6 10.Ne5 O-O *

[Event "0x3e6c99ce"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B58"]
[Opening "Sicilian"]
[Variation "Boleslavsky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5 7.Nf3 h6 8.O-O 
Be7 9.Re1 O-O 10.h3 Re8 *

[Event "0x3e84497e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian"]
[Variation "dragon variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O O-O 8.Re1 
Nc6 9.Nb3 Be6 10.Bf1 d5 *

[Event "0x3e8cb46c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C96"]
[Opening "Ruy Lopez"]
[Variation "closed (10...c5)"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 
9.h3 Na5 10.Bc2 c5 *

[Event "0x3e937d94"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.a4 g6 7.Be2 Bg7 8.O-O O-O
9.f4 Nc6 10.Be3 Rb8 *

[Event "0x3ed4bd85"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B93"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 e5 7.Nf3 Nbd7 8.Bd3 
Be7 9.O-O b5 10.Qe1 Bb7 *

[Event "0x3ed82b95"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A27"]
[Opening "English"]
[Variation "three knights system"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 f5 4.d4 e4 5.d5 exf3 6.dxc6 fxg2 7.cxd7+ Qxd7 8.
Qxd7+ Bxd7 9.Bxg2 O-O-O *

[Event "0x3ee412ab"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A17"]
[Opening "English"]
[Variation "Nimzo-English opening"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4 4.Qb3 Nc6 5.a3 Be7 6.e4 e5 7.d3 O-O *

[Event "0x3f1e96db"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.Qd2 Be7 8.f3 
O-O 9.O-O-O d5 10.Qe1 Bd7 *

[Event "0x3f6a6cad"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D73"]
[Opening "Neo-Gruenfeld, 5.Nf3"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.c4 dxc4 6.Qa4+ Nfd7 7.Nbd2 a6 8.Qxc4
Nb6 9.Qc2 Nc6 10.Nb3 O-O *

[Event "0x3f77396f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 c6 7.e3 Bg4 8.Qb3 Qb6 
9.cxd5 Qxb3 10.axb3 Bxf3 *

[Event "0x3f79f456"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 Bb4+ 5.Bd2 Be7 6.Bg2 O-O 7.O-O c6 8.Qb3 b6 
9.cxd5 cxd5 10.Rc1 Bb7 *

[Event "0x3fc75209"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B97"]
[Opening "Sicilian"]
[Variation "Najdorf, 7...Qb6"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 
Qxb2 9.Nb3 Qa3 10.Bd3 Nbd7 *

[Event "0x3fc96edd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A31"]
[Opening "English"]
[Variation "symmetrical, Benoni formation"]

1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 b6 5.Nc3 Bb7 6.f3 d6 7.e4 e6 8.Be3 Be7 
9.Be2 O-O *

[Event "0x3fcb1500"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A06"]
[Opening "Reti"]
[Variation "Nimzovich-Larsen attack"]

1.Nf3 d5 2.b3 c5 3.e3 Nc6 4.Bb2 Nf6 5.Bb5 *

[Event "0x3fce455a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B63"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...Be7"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O
a6 9.f4 Qc7 10.Nf3 h6 *

[Event "0x3fcf004c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B06"]
[Opening "Robatsch (modern) defence"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Be3 c6 5.Qd2 b5 6.f3 Nd7 7.a4 b4 8.Nd1 Qa5 9.
Bd3 Ngf6 10.Ne2 O-O *

[Event "0x3fd1017e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.Nge2 Nc6 8.Qd2 e6 
9.Rd1 b6 10.d5 *

[Event "0x3fdf1e7d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B89"]
[Opening "Sicilian"]
[Variation "Sozin, 7.Be3"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Be3 a6 8.Bb3 
Qc7 9.Qe2 Na5 10.g4 b5 *

[Event "0x40115cf8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B59"]
[Opening "Sicilian"]
[Variation "Boleslavsky variation, 7.Nb3"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5 7.Nb3 Be7 8.O-O 
O-O 9.Kh1 a5 10.a4 Be6 *

[Event "0x403f3ecb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A72"]
[Opening "Benoni"]
[Variation "classical without 9.O-O"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 
9.Bg5 h6 10.Bh4 g5 *

[Event "0x404126ac"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B01"]
[Opening "Scandinavian"]
[Variation "Marshall variation"]

1.e4 d5 2.exd5 Nf6 3.d4 Nxd5 4.Nf3 g6 5.Be2 Bg7 6.O-O O-O 7.Re1 c5 8.dxc5 
Na6 9.Bxa6 bxa6 10.c3 Bb7 *

[Event "0x40433ea6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B60"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Qa5 7.Bxf6 gxf6 8.
Nb3 Qg5 9.Nd5 Rb8 10.f4 Qg6 *

[Event "0x4056dc9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A36"]
[Opening "English"]
[Variation "ultra-symmetrical variation"]

1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.a3 a6 6.Rb1 Rb8 7.b4 cxb4 8.axb4 b5 
9.cxb5 axb5 *

[Event "0x407d171d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A02"]
[Opening "Bird's opening"]

1.f4 c5 2.g3 g6 3.Bg2 Bg7 4.Nf3 Nc6 5.O-O d6 6.c3 f5 7.d3 Nf6 8.Na3 O-O 9.
e4 Kh8 10.exf5 gxf5 11.Nc4 Be6 *

[Event "0x40a75c65"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.Be3 c6 8.O-O exd4 
9.Nxd4 Re8 10.Qc2 Qe7 *

[Event "0x40c1f4e6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B60"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Larsen variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 Bd7 7.Be2 Qa5 8.Bxf6
gxf6 9.O-O Qg5 10.Kh1 Rg8 *

[Event "0x40fe028d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E17"]
[Opening "Queen's Indian"]
[Variation "anti-Queen's Indian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 O-O 7.d5 Bb4 8.Bd2 Bxc3
9.Bxc3 exd5 10.Nh4 Ne4 *

[Event "0x41417c50"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A30"]
[Opening "English"]
[Variation "symmetrical variation"]

1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O g6 6.b3 Bg7 7.Bb2 O-O 8.Nc3 d6 
9.e3 Nbd7 10.d4 e6 11.Qe2 a6 *

[Event "0x4143147c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C46"]
[Opening "Three knights"]
[Variation "Steinitz, Rosenthal variation"]

1.e4 e5 2.Nc3 Nc6 3.Nf3 g6 4.d4 exd4 5.Nd5 Bg7 6.Bg5 Nce7 7.Nxd4 c6 8.Nc3 
h6 9.Be3 d5 10.exd5 Nxd5 *

[Event "0x416d0e26"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 c5 6.dxc5 Qa5 7.Nd2 dxc4 8.e4 
O-O 9.Bxc4 Qxc5 10.O-O Nc6 *

[Event "0x4182c10b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C71"]
[Opening "Ruy Lopez"]
[Variation "modern Steinitz defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.d4 b5 6.Bb3 Nxd4 7.Nxd4 exd4 8.c3 
dxc3 9.Qh5 Qd7 10.Nxc3 Nf6 *

[Event "0x4186c655"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B76"]
[Opening "Sicilian"]
[Variation "dragon, Yugoslav attack, 7...O-O"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 d5
9.e5 Ne8 10.f4 f6 *

[Event "0x419bae1a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 dxc4 7.e3 c5 8.Bxc4 
cxd4 9.Nxd4 Nbd7 10.Bg3 Nb6 *

[Event "0x41a584f4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Qxc4 c5 8.O-O 
b5 9.Qb3 Bb7 10.a4 Bd5 *

[Event "0x41a7f461"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C67"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence, open variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6 6.Bxc6 dxc6 7.dxe5 Nf5 8.
Qxd8+ Kxd8 9.Nc3 Bd7 10.b3 h6 *

[Event "0x41a859cf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Qc7 7.Bg2 Nge7 8.Nb3 
d6 *

[Event "0x41b50224"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian"]
[Variation "dragon variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O O-O 8.Bg5 
Nc6 9.Nb3 Be6 10.Kh1 Rc8 *

[Event "0x41e5d1e1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.e3 c5 7.Bd2 Bxc3 8.Bxc3 
cxd4 9.Bxd4 Nc6 10.Bc3 O-O *

[Event "0x41f4c55b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
Qa5 9.Rb1 a6 10.Rc1 cxd4 *

[Event "0x41fe46b7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, not Scheveningen"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Bd7 7.O-O g6 8.Bg5 
Bg7 9.Nxc6 bxc6 10.Qd2 O-O *

[Event "0x423f7c2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C72"]
[Opening "Ruy Lopez"]
[Variation "modern Steinitz defence, 5.O-O"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.O-O Bd7 6.c3 Nf6 7.Re1 g6 8.d4 Qe7 
9.Nbd2 Bg7 10.dxe5 Nxe5 *

[Event "0x42410c09"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D48"]
[Opening "QGD semi-Slav"]
[Variation "Meran, Reynolds' variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 Nbd7 6.Nc3 dxc4 7.Bxc4 b5 8.Bd3 a6
9.e4 c5 10.d5 c4 *

[Event "0x4249b44"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ Bc6 8.Qc2 
dxc4 9.e3 b5 10.Ne5 a6 *

[Event "0x42534fb8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Nge7 7.Bf4 Ng6 8.Bg3 
Be7 9.O-O O-O 10.Qd2 d6 *

[Event "0x4263ad8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.Bg5 d5 *

[Event "0x426b253f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C69"]
[Opening "Ruy Lopez"]
[Variation "exchange, Bronstein variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Qd6 6.Na3 Be6 7.Qe2 f6 8.Nc4 
Qd7 9.Rd1 c5 10.c3 Bg4 *

[Event "0x427b51e8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B84"]
[Opening "Sicilian"]
[Variation "Scheveningen (Paulsen), classical variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 a6 7.a4 Nc6 8.O-O Bd7
9.Be3 Be7 10.Nb3 Na5 *

[Event "0x427bca10"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.Na3 b4 *

[Event "0x428d66c2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A02"]
[Opening "Bird"]
[Variation "From gambit"]

1.f4 e5 2.fxe5 d6 3.exd6 Bxd6 4.Nf3 Nf6 5.d4 Ng4 *

[Event "0x42964aca"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 Bb4+ 5.Bd2 Be7 6.Bg2 O-O 7.O-O c6 8.Qb3 b6 
9.Nc3 Ba6 10.cxd5 cxd5 *

[Event "0x42987bbc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 e6 8.Nf3 
exd5 9.e3 Qd6 10.Be2 O-O *

[Event "0x429d535e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 dxc4 7.e4 Bg4 8.Bxc4 
Bxf3 9.gxf3 *

[Event "0x42a882d8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B59"]
[Opening "Sicilian"]
[Variation "Boleslavsky variation, 7.Nb3"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 e5 7.Nb3 Be7 8.O-O 
O-O 9.Be3 a5 10.f3 Be6 *

[Event "0x42d926f3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B92"]
[Opening "Sicilian"]
[Variation "Najdorf, Opovcensky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O 
Nbd7 9.a4 b6 10.Be3 O-O *

[Event "0x42dbce01"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B18"]
[Opening "Caro-Kann"]
[Variation "classical, 6.h4"]

1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nf6 8.Ne5 
Bh7 9.Bd3 Nbd7 10.Bxh7 Nxh7 *

[Event "0x42f27eb6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B54"]
[Opening "Sicilian"]
[Variation "Prins (Moscow) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3 Nc6 6.c4 Qb6 7.Nc2 g6 8.Nc3 Bg7
9.Rb1 Nb4 10.Ne3 O-O *

[Event "0x42f84e37"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A51"]
[Opening "Budapest"]
[Variation "Fajarowicz variation"]

1.c4 Nf6 2.d4 e5 3.dxe5 Ne4 4.Nf3 Nc6 5.Nbd2 Nc5 6.a3 Qe7 7.e3 Nxe5 8.Nxe5
Qxe5 9.Nf3 Qf6 10.Be2 Be7 *

[Event "0x43113936"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B92"]
[Opening "Sicilian"]
[Variation "Najdorf, Opovcensky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be6 8.O-O 
Nbd7 9.Be3 b5 10.f4 Be7 *

[Event "0x431ed9c1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.cxd5 cxd5 8.Ne5 
Ng4 9.f4 Nxe5 10.fxe5 Nc6 *

[Event "0x43256a36"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Re1 Nbd7 7.e4 e5 8.Nc3 c6 
9.a4 Qc7 10.b3 exd4 *

[Event "0x43379a20"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E83"]
[Opening "King's Indian"]
[Variation "Saemisch, 6...Nc6"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6 7.Qd2 a6 8.Bd3 *

[Event "0x434d85b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Nc3 Rb8 8.Qxc4 
b5 9.Qd3 Bb7 10.Bf4 Rc8 *

[Event "0x435399a9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Re1 Nbd7 7.e4 e5 8.Nc3 c6 
9.a4 Qc7 10.b3 Re8 *

[Event "0x43833953"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.a3 Be7 
9.b4 c5 10.bxc5 dxc4 *

[Event "0x4383a4e9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Bb4+ 5.Nbd2 O-O 6.Bg2 b6 7.O-O Bb7 8.a3 Be7
9.b4 Nbd7 10.Rb1 c6 *

[Event "0x43a17123"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B91"]
[Opening "Sicilian"]
[Variation "Najdorf, Zagreb (fianchetto) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 e5 7.Nde2 Nbd7 8.Bg2 
Be7 9.O-O b5 10.Nd5 Nxd5 *

[Event "0x43c9fab"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C69"]
[Opening "Ruy Lopez"]
[Variation "exchange, Bronstein variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Qd6 6.Na3 Be6 7.Qe2 f6 8.Rd1 
Bg4 9.h3 Bxf3 10.Qxf3 Qe6 *

[Event "0x43f8ccda"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B91"]
[Opening "Sicilian"]
[Variation "Najdorf, Zagreb (fianchetto) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 e6 7.Bg2 Qc7 8.O-O Be7
9.a4 Nc6 10.Nb3 b6 *

[Event "0x4406cf94"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.f3 b5 8.a4 b4 9.
Na2 e5 10.Nb3 d5 *

[Event "0x4423db97"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A33"]
[Opening "English"]
[Variation "symmetrical variation"]

1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 6.Ndb5 Bb4 7.a3 Bxc3+ 8.
Nxc3 d5 *

[Event "0x4425ee73"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be3 Qc7 7.Bd3 Nf6 8.O-O 
Ne5 9.h3 d6 *

[Event "0x4447fe9b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Lipnitzky attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.Bb3 Nc6 8.Be3 
Be7 9.f4 O-O 10.Qf3 Na5 *

[Event "0x444f9e28"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A90"]
[Opening "Dutch defence"]

1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 d5 5.Nf3 c6 6.O-O Bd6 7.Ne5 O-O 8.Bf4 Ng4 
9.Nxg4 Bxf4 10.gxf4 fxg4 *

[Event "0x44815438"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B61"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Larsen variation, 7.Qd2"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Bd7 7.Qd2 Rc8 8.
O-O-O Nxd4 9.Qxd4 Qa5 10.Bxf6 gxf6 *

[Event "0x449c350c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B04"]
[Opening "Alekhine's defence"]
[Variation "modern, Keres variation"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 g6 5.Bc4 Nb6 6.Bb3 Bg7 7.a4 d5 8.a5 Nc4 9.
Nbd2 b5 10.axb6 Nxb6 *

[Event "0x44a8d87b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E54"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system with 7...dc"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 d5 7.O-O dxc4 8.Bxc4 
Nc6 9.a3 Ba5 10.Na4 cxd4 *

[Event "0x44b76924"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A43"]
[Opening "Old Benoni defence"]

1.d4 c5 2.d5 d6 3.e4 Nf6 4.Nc3 g6 5.Nf3 Bg7 *

[Event "0x44c3fb42"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B22"]
[Opening "Sicilian"]
[Variation "Alapin's variation (2.c3)"]

1.e4 c5 2.c3 e6 3.Nf3 d5 4.exd5 exd5 5.d4 Nc6 6.Bb5 Bd6 7.O-O Nf6 8.dxc5 
Bxc5 9.Bg5 Be6 10.Nbd2 h6 *

[Event "0x4501a1d8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 O-O 7.a3 Be7 8.d5 
exd5 9.cxd5 Re8 10.d6 Bf8 *

[Event "0x45026e46"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.cxd5 
exd5 9.a3 Bd6 10.b4 Ne4 *

[Event "0x450ca2df"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E74"]
[Opening "King's Indian"]
[Variation "Averbakh, 6...c5"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 h6 8.Bf4 Ne8 *

[Event "0x452a29ba"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A27"]
[Opening "English"]
[Variation "three knights system"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 g6 4.d4 exd4 5.Nxd4 Bg7 6.Nxc6 bxc6 7.g3 Qe7 8.Bd2
Qe6 9.b3 Ne7 *

[Event "0x453e77a6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 a6 6.O-O Nc6 7.e3 Bd7 8.Nc3 Bd6 
9.Qe2 b5 10.e4 Be7 *

[Event "0x453fcfe8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Qc7 7.Bg2 Nf6 8.O-O 
Be7 9.b3 O-O 10.Bb2 d6 *

[Event "0x455bfd49"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.g3 Bd6 6.Bg2 O-O 7.O-O Nbd7 8.Rd1 Qe7
9.Nbd2 Re8 10.e4 *

[Event "0x4569451"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 c5 7.Qe2 a6 8.dxc5 
Bxc5 9.O-O b5 10.Bd3 Bb7 *

[Event "0x456e707"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian"]
[Variation "dragon variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O O-O 8.Be3 
Nc6 9.h3 Bd7 10.f4 Rc8 *

[Event "0x4593178d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.Nc3 d5 7.cxd5 cxd5 8.Ne5 b6
*

[Event "0x459bab76"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B60"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Larsen variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Bd7 7.Be2 Qa5 8.Bxf6
gxf6 9.Nb3 Qg5 10.g3 h5 *

[Event "0x45aa9af"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.Bh4 c5 7.cxd5 Nxc3 8.bxc3 
Qxd5 9.e3 Nc6 10.Be2 O-O *

[Event "0x45d59280"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 c6 7.e3 Bg4 8.h3 Bxf3 
9.Qxf3 Qa5 10.Bd3 Nbd7 *

[Event "0x4623ca7e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Bd3 Be7 8.Qf3 Nc6
9.Nxc6 bxc6 10.b3 e5 *

[Event "0x4649a5d2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Qd3 Ba6 5.a3 c5 6.dxc5 Bxc5 7.b4 Bb6 8.Bg2 d5 
9.O-O O-O 10.Bb2 Nc6 *

[Event "0x4656a7b2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A36"]
[Opening "English"]
[Variation "symmetrical, Botvinnik system"]

1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.e4 Nf6 6.Nge2 O-O 7.O-O d6 *

[Event "0x466a8409"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.Nge2 Nc6 8.Qd2 b6 
9.d5 Ne5 10.Ng3 *

[Event "0x469aa853"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A88"]
[Opening "Dutch"]
[Variation "Leningrad, main variation with c6"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.Nf3 Bg7 5.c4 O-O 6.O-O d6 7.Nc3 c6 8.b3 Nh5 9.
Bb2 Na6 10.d5 e5 *

[Event "0x469bbe19"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D37"]
[Opening "QGD"]
[Variation "4.Nf3"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qd2 
dxc4 9.Bxc4 c5 10.dxc5 Nd7 *

[Event "0x469fcfe7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B88"]
[Opening "Sicilian"]
[Variation "Sozin, Leonhardt variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3 a6 8.O-O 
Be7 9.Be3 O-O 10.f4 Nxd4 *

[Event "0x46ab06d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.h4 c5 8.d5 Nc7 9.
h5 *

[Event "0x46b4b446"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "modern Scheveningen, main line with Nb3"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be2 Nf6 7.Be3 Be7 8.O-O 
O-O 9.f4 Bd7 10.Nb3 a6 *

[Event "0x46c8ea7d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.c3 Na6 7.Bg5 h6 8.Bxf6 Qxf6
9.Nbd2 Rb8 10.e4 Qd8 *

[Event "0x4714d1de"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.Nc3 cxd4 5.Nxd4 a6 6.Be3 Ng4 7.Bc1 Nf6 8.Be3 
Ng4 9.Bg5 h6 10.Bh4 g5 *

[Event "0x474377b9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B18"]
[Opening "Caro-Kann"]
[Variation "classical, 6.h4"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nf6 8.Ne5 
Bh7 9.Bd3 Nbd7 10.Bxh7 Nxe5 *

[Event "0x4781629"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D97"]
[Opening "Gruenfeld"]
[Variation "Russian, Alekhine (Hungarian) variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 a6 8.Qb3 c5
9.dxc5 Nbd7 10.Qa3 Qc7 *

[Event "0x47839468"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D90"]
[Opening "Gruenfeld"]
[Variation "Three knights variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.cxd5 Nxd5 6.Bd2 O-O 7.Rc1 Bg4 8.e3 
e5 9.Qb3 Bxf3 10.gxf3 Nb6 *

[Event "0x47cef00d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B63"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...Be7"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O
Nxd4 9.Qxd4 a6 10.e5 dxe5 *

[Event "0x47d4f197"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 c5 7.Qe2 a6 8.dxc5 
Bxc5 9.O-O Qc7 10.Nbd2 Nc6 *

[Event "0x47e2920b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 a6 7.Qd2 c5 8.d5 Qa5 9.
a4 e6 10.Ra3 exd5 *

[Event "0x47e746d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "Linares variation"]

1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 Nf6 5.Nc3 b5 6.e5 b4 7.exf6 bxc3 8.bxc3 Nd7
9.Qa4 *

[Event "0x4827eae9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Qf3 Qb6 8.a3 Nc6 
9.Nxc6 bxc6 10.g4 g6 *

[Event "0x483e0090"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D22"]
[Opening "QGA"]
[Variation "Alekhine defence"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 Nf6 5.Bxc4 b5 6.Bd3 Bb7 7.a4 b4 8.Nbd2 e6 
9.Qe2 c5 10.dxc5 Bxc5 *

[Event "0x48414128"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 d6 4.Nf3 g6 5.O-O Bg7 6.b4 O-O 7.Bb2 c6 8.c4 Na6 9.
Qb3 Nc7 10.Nc3 Kh8 *

[Event "0x485b5f24"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A71"]
[Opening "Benoni"]
[Variation "classical, 8.Bg5"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.e4 Bg7 8.Bg5 h6 
9.Bh4 O-O 10.Nd2 b6 *

[Event "0x488af26e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C88"]
[Opening "Ruy Lopez"]
[Variation "closed, anti-Marshall 8.a4"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.a4 Bb7
9.d3 d6 10.Nbd2 Nd7 *

[Event "0x4894f871"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C02"]
[Opening "French"]
[Variation "advance, Paulsen attack"]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.a3 Bd7 7.b4 cxd4 8.cxd4 Rc8 *

[Event "0x48a467e8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B22"]
[Opening "Sicilian"]
[Variation "Alapin's variation (2.c3)"]

1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.g3 d6 5.exd6 e6 6.Bg2 Bxd6 7.Nf3 Nc6 8.d4 O-O 
9.O-O cxd4 10.Nxd4 Bd7 *

[Event "0x48c0be3b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Re1 c5 7.c3 Bf5 8.Nbd2 Qc8
9.e4 Bh3 10.e5 Bxg2 *

[Event "0x48cd38dc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 c5 6.O-O Nc6 7.Ne5 Nxe5 *

[Event "0x48cddacc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A90"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 e6 4.c4 d5 5.Nh3 c6 6.O-O Bd6 7.Qc2 O-O 8.Nd2 Bd7 
9.Nf3 Be8 10.Bf4 h6 *

[Event "0x4962c284"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.h4 e5 8.d5 h6 9.
Be3 Nc5 10.Qc2 c6 *

[Event "0x49c709c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 c5 7.O-O O-O 8.Bxb4 
cxb4 9.Qd3 d6 10.Nbd2 Re8 *

[Event "0x49d02603"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Nc3 Nbd7 7.a4 a5 8.b3 c6 
9.e4 e5 10.Ba3 exd4 *

[Event "0x49d4fab4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D45"]
[Opening "QGD semi-Slav"]
[Variation "Stoltz variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nc3 Nbd7 6.Qc2 Bd6 7.Bd3 O-O 8.O-O 
dxc4 9.Bxc4 Qe7 10.Rd1 e5 *

[Event "0x49dd8c9b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B63"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...Be7"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 Be7 8.Be2 
a6 9.O-O-O Qc7 10.f4 Bd7 *

[Event "0x49eeabc2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A34"]
[Opening "English"]
[Variation "symmetrical variation"]

1.c4 c5 2.Nc3 Nf6 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nxc3 6.bxc3 g6 7.h4 Bg7 8.h5 
Qc7 *

[Event "0x4a054697"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B96"]
[Opening "Sicilian"]
[Variation "Najdorf, 7.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qc7 8.Bxf6 
gxf6 9.Qd2 b5 10.Be2 h5 *

[Event "0x4a3177d1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.Be2"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O O-O 8.Be3 
a6 9.a4 Qc7 10.a5 Nbd7 *

[Event "0x4a483d07"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.Nf3 Bg7 5.O-O O-O 6.b3 d6 7.Bb2 Qe8 8.Nbd2 h6 
9.Re1 g5 10.e4 fxe4 *

[Event "0x4a5d2b7d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 d5 6.O-O e5 7.Nb3 Be6 8.Nc3 
Be7 9.f4 exf4 10.gxf4 g6 *

[Event "0x4a61da83"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C80"]
[Opening "Ruy Lopez"]
[Variation "open, 8...Be6"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.Be3 Be7 10.c3 O-O *

[Event "0x4a69b12c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 c6 7.Bd3 Nbd7 8.Nf3 
Nf8 9.O-O Bg4 10.h3 Bh5 *

[Event "0x4a7ddc9b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Bxc5 7.Nf3 b6 8.e3 
Bb7 9.a3 Nc6 10.Be2 Be7 *

[Event "0x4a7eca09"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B66"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
h6 9.Bf4 Bd7 10.Nf3 e5 *

[Event "0x4a889add"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Qa5 7.Nf3 Na6 8.Bd2 
Nxc5 9.a3 b6 10.Nd4 Bxc3 *

[Event "0x4a8a41da"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.e3 O-O 8.Rc1 Nbd7 
9.cxd5 exd5 10.Be2 c5 *

[Event "0x4aa7c38f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Riumin variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.Nc3 O-O 8.O-O 
Na6 9.Rc1 Re8 10.Qa4 *

[Event "0x4abb8084"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Nxc6 bxc6 7.Bd3 d5 8.O-O 
Nf6 9.Re1 Be7 10.e5 Nd7 *

[Event "0x4b11e5ac"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "Linares variation"]

1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 Nf6 5.Nc3 b5 6.Bf4 a6 *

[Event "0x4b132dbd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 O-O 7.a3 Be7 8.d5 
exd5 9.cxd5 Bc5 10.Nd4 d6 *

[Event "0x4b1332a3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 d5 6.O-O c6 7.cxd5 cxd5 8.Ne5 
Nc6 9.Nc3 e6 10.Bg5 h6 *

[Event "0x4b1d02d8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B88"]
[Opening "Sicilian"]
[Variation "Sozin, Leonhardt variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3 a6 8.f4 
Nxd4 *

[Event "0x4b4ab49b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E35"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation, 5.cd ed"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Bg5 h6 7.Bh4 c5 8.dxc5 
g5 9.Bg3 Nc6 10.e3 Qa5 *

[Event "0x4b6d3fe7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Nc3 Nbd7 7.e4 e5 8.a4 c6 
9.b3 *

[Event "0x4b9dbed2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B71"]
[Opening "Sicilian"]
[Variation "dragon, Levenfish variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.f4 Nc6 7.Bb5 Bd7 8.Bxc6 
bxc6 9.e5 Nd5 10.Nxd5 cxd5 *

[Event "0x4b9f34aa"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B14"]
[Opening "Caro-Kann"]
[Variation "Panov-Botvinnik attack, 5...e6"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6 6.Nf3 Bb4 7.Bd3 dxc4 8.Bxc4 
O-O 9.O-O a6 10.a3 Be7 *

[Event "0x4ba2e7ca"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D90"]
[Opening "Gruenfeld"]
[Variation "Three knights variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.cxd5 Nxd5 6.Bd2 O-O 7.Rc1 Nb6 8.Bg5 
h6 9.Bh4 g5 10.Bg3 c5 *

[Event "0x4bcc9b70"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Riumin variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.Nc3 O-O 8.O-O d5
9.Ne5 Nbd7 *

[Event "0x4bd25afb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B14"]
[Opening "Caro-Kann"]
[Variation "Panov-Botvinnik attack, 5...e6"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6 6.Nf3 Be7 7.Bf4 O-O 8.Bd3 
dxc4 9.Bxc4 Nbd7 10.O-O Nb6 *

[Event "0x4c094747"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.b3 d6 6.Bb2 e5 7.dxe5 Nfd7 8.Nc3 
dxe5 9.e4 c6 *

[Event "0x4c5f32fa"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D90"]
[Opening "Gruenfeld"]
[Variation "Three knights variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.cxd5 Nxd5 6.Bd2 O-O 7.Rc1 Nb6 8.Bg5 
Nc6 *

[Event "0x4c74a42a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 d6 7.Bg2 Bd7 8.Nb3 *

[Event "0x4c86130e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B15"]
[Opening "Caro-Kann"]
[Variation "Tartakower (Nimzovich) variation"]

1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 6.c3 Bd6 7.Bd3 O-O 8.
Qc2 Re8+ 9.Ne2 Kh8 10.Be3 Nd7 *

[Event "0x4cb57967"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B08"]
[Opening "Pirc"]
[Variation "classical system, 5.Be2"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O Bg4 7.Be3 Nc6 8.Qd2 e5
9.d5 Ne7 10.Rad1 Bd7 *

[Event "0x4ce3686a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
Qa5 9.Rb1 b6 10.Bc4 *

[Event "0x4d06782a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E54"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system with 7...dc"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 d5 7.O-O dxc4 8.Bxc4 
cxd4 9.exd4 a6 10.Bg5 b5 *

[Event "0x4d2d822a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "modern Scheveningen, main line"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be2 Nf6 7.O-O Be7 8.Be3 
O-O 9.f4 a6 10.Kh1 Qc7 *

[Event "0x4d3662a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D90"]
[Opening "Gruenfeld"]
[Variation "Three knights variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.cxd5 Nxd5 6.Bd2 O-O 7.Rc1 Nb6 8.e3 
Nc6 9.Bb5 Bd7 10.O-O e5 *

[Event "0x4d38da67"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
Qa5 9.Rb1 cxd4 10.cxd4 Qxd2+ *

[Event "0x4d3d3fea"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 O-O 7.a3 Be7 8.Nf4 d6
9.Be3 e5 10.dxe5 dxe5 *

[Event "0x4d4fc516"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 Nc6 6.Qa4 Bb4+ 7.Bd2 Nd5 8.Bxb4 
Nxb4 9.O-O Rb8 10.Nc3 a6 *

[Event "0x4d790e44"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B17"]
[Opening "Caro-Kann"]
[Variation "Steinitz variation"]

1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nd7 5.Ng5 Ngf6 6.Bd3 e6 7.N1f3 Bd6 8.Qe2
h6 9.Ne4 Nxe4 10.Qxe4 Qc7 *

[Event "0x4d9f5fde"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E62"]
[Opening "King's Indian"]
[Variation "fianchetto, Larsen system"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.Nc3 d6 7.O-O Bf5 8.Ne1 Qd7 
9.e4 Bh3 10.f3 Bxg2 *

[Event "0x4db95c39"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A34"]
[Opening "English"]
[Variation "symmetrical, Rubinstein system"]

1.c4 c5 2.Nc3 Nf6 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nc7 6.Nf3 Nc6 7.O-O e5 8.d3 
Be7 9.Nd2 Bd7 *

[Event "0x4dd6b219"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 c5 6.O-O Nc6 7.Ne5 Bd7 8.Na3 Nd5
9.Nxd7 Qxd7 10.dxc5 Bxc5 *

[Event "0x4ddc54b4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A09"]
[Opening "Reti"]
[Variation "advance variation"]

1.Nf3 d5 2.c4 d4 3.e3 Nc6 4.exd4 Nxd4 5.Nxd4 Qxd4 6.Nc3 e5 7.d3 Ne7 *

[Event "0x4e38b1e5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E74"]
[Opening "King's Indian"]
[Variation "Averbakh, 6...c5"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 h6 8.Bf4 e5 9.
Be3 *

[Event "0x4e66e30b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C64"]
[Opening "Ruy Lopez"]
[Variation "classical defence, 4.c3"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 Nf6 5.d3 d6 6.O-O O-O 7.Nbd2 Bd7 8.Ba4 a6
9.h3 Ba7 10.Re1 Ne7 *

[Event "0x4e776d8a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.cxd5 exd5 5.Nc3 Nf6 6.Qc2 g6 7.Bg5 Be7 8.e4 
dxe4 9.Bxf6 Bxf6 10.Qxe4+ Qe7 *

[Event "0x4e791241"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C42"]
[Opening "Petrov"]
[Variation "classical attack, close variation"]

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 Nf6 6.Bd3 Be7 7.h3 O-O 8.O-O 
Nc6 9.c3 Re8 10.Re1 Bd7 *

[Event "0x4e80c650"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.e3 Nbd7 8.cxd5 
exd5 9.Be2 O-O 10.O-O c5 *

[Event "0x4eb0ed29"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A39"]
[Opening "English"]
[Variation "symmetrical, main line with d4"]

1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d4 cxd4 8.Nxd4 
Nxd4 9.Qxd4 d6 10.Qd3 a6 11.Bd2 Rb8 12.e4 Be6 *

[Event "0x4ec6b840"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ Bc6 8.Qc2 
dxc4 9.e3 b5 10.a4 Bxf3 *

[Event "0x4eda6351"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B94"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.Bg5"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 Nbd7 7.Bc4 g6 8.Qd2 
Bg7 9.f3 h6 10.Be3 b5 *

[Event "0x4ee74b3e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B52"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky attack, Sokolsky variation"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 Nc6 6.Nc3 Nf6 7.d4 cxd4 8.
Nxd4 e6 9.O-O Be7 10.b3 O-O *

[Event "0x4efd8d69"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E06"]
[Opening "Catalan"]
[Variation "closed, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 Be7 5.Bg2 O-O 6.O-O dxc4 7.Qc2 a6 8.a4 Bd7 
9.Rd1 Bc6 10.Nc3 Bb4 *

[Event "0x4f1631fa"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D22"]
[Opening "QGA"]
[Variation "Alekhine defence"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 Nf6 5.Bxc4 b5 6.Bd3 Bb7 7.O-O e6 8.Qe2 *

[Event "0x4f360dbb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.f4 Qc7
9.Qd2 exf4 10.Bxf4 Nbd7 *

[Event "0x4f3922ba"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.c4 Bg7 5.Nc3 c6 6.d5 d6 7.Nh3 e5 8.dxe6 Bxe6 
9.b3 O-O 10.O-O Na6 *

[Event "0x4f3aa1bb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B61"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Larsen variation, 7.Qd2"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 Bd7 7.Qd2 Rc8 8.Nb3 
a6 9.Be2 e6 10.O-O h6 *

[Event "0x4f4cfc8f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.g4 h5 8.gxh5 b5 
9.a3 Bb7 10.Bg2 Nbd7 *

[Event "0x4f4fbbc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B31"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (with ...g6, without ...d6)"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 Nf6 6.Re1 O-O 7.d4 cxd4 8.cxd4 
d5 9.e5 Ne4 10.Nc3 Bf5 *

[Event "0x4f97249e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B97"]
[Opening "Sicilian"]
[Variation "Najdorf, 7...Qb6"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Nb3 
Nbd7 9.Bd3 Qe3+ 10.Qe2 Qxe2+ *

[Event "0x4fb4f0d5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.c3 Be7 7.Bg5 Na6 8.Qd3 Qb6 
9.Nbd2 d5 10.a3 h6 *

[Event "0x4fd0ad12"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.Be2"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O O-O 8.Be3 
e5 *

[Event "0x4fe0bc1e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E54"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system with 7...dc"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4 
cxd4 9.exd4 a6 10.Bg5 Nbd7 *

[Event "0x4ffd08a1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Re1 c5 7.c3 Ne4 8.Nbd2 
Nxd2 9.Bxd2 cxd4 10.cxd4 Nc6 *

[Event "0x50057267"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "modern Scheveningen, main line"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O Nc6 8.Be3 
O-O 9.f4 a6 10.Qe1 Nxd4 *

[Event "0x5009fcf1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B91"]
[Opening "Sicilian"]
[Variation "Najdorf, Zagreb (fianchetto) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 e5 7.Nde2 Be7 8.Bg2 
O-O 9.O-O Be6 10.h3 Nbd7 *

[Event "0x50144f1b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B88"]
[Opening "Sicilian"]
[Variation "Sozin, Leonhardt variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3 Be7 8.Be3 
a6 9.f4 Qc7 10.Qe2 O-O *

[Event "0x50270c7d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Riumin variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.Nc3 O-O 8.O-O 
Na6 9.Bf4 e5 10.Nxe5 c5 *

[Event "0x5027f5f5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.a3 Bd6 
9.cxd5 exd5 10.b4 Nbd7 *

[Event "0x502fea4a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 d5 6.a3 Bxc3+ 7.Nxc3 cxd4 8.exd4 
dxc4 9.Bxc4 Nc6 10.Be3 O-O *

[Event "0x50398f2d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Bxc5 7.Nf3 b6 8.e3 
Bb7 9.a3 Be7 10.h3 Nc6 *

[Event "0x503d8817"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 a6 7.Nge2 c6 8.Qd2 b5 9.
h4 *

[Event "0x503fb4ef"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A80"]
[Opening "Dutch"]

1.d4 f5 2.Nf3 Nf6 3.g3 e6 4.Bg2 Be7 5.O-O O-O 6.b3 d6 7.Bb2 Qe8 8.Nbd2 Nc6
9.c4 Qh5 10.e3 g5 *

[Event "0x50524faa"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A27"]
[Opening "English"]
[Variation "three knights system"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 f5 4.d4 e4 5.Ng5 Nf6 6.e3 Bb4 7.Bd2 Qe7 *

[Event "0x5077edc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A67"]
[Opening "Benoni"]
[Variation "Taimanov variation"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Bb5+ Nfd7
9.a4 O-O 10.Nf3 Re8 *

[Event "0x5092f371"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B62"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, 6...e6"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.g3 h6 8.Be3 Be7
9.Bg2 Bd7 10.O-O O-O *

[Event "0x5097c350"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D53"]
[Opening "QGD"]
[Variation "4.Bg5 Be7"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.Nf3 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qb3 c5
9.dxc5 Nd7 10.cxd5 Qa5 *

[Event "0x50acf6ec"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Nc3 exd4 6.Qxd4 Qxd4 7.Nxd4 Nf6 8.
f3 Bd7 9.Bxc4 Nc6 10.Nxc6 Bxc6 *

[Event "0x50b851ba"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C80"]
[Opening "Ruy Lopez"]
[Variation "open, 8...Be6"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.Be3 Bc5 10.Qe2 Qe7 *

[Event "0x50c4778b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B09"]
[Opening "Pirc"]
[Variation "Austrian attack, 6.e5"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.e5 Nfd7 7.Bc4 Nb6 8.Be2 
dxe5 9.fxe5 Nc6 10.O-O Bg4 *

[Event "0x50ed0310"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "semi-Slav, Noteboom variation"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 5.a4 Bb4 6.e4 b5 7.Be2 Bb7 8.O-O a6 9.
e5 *

[Event "0x51226df3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B33"]
[Opening "Sicilian"]
[Variation "Pelikan, Chelyabinsk variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 
b5 9.Nab1 Be7 10.Bxf6 Bxf6 *

[Event "0x5136755a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 d5 6.O-O c6 7.cxd5 cxd5 8.Ne5 
Ng4 9.Nxg4 Bxg4 10.Nc3 Nc6 *

[Event "0x514c838"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "Charousek (Petrosian) variation"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qc2 c5
9.dxc5 Nc6 10.cxd5 exd5 *

[Event "0x5150e860"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E18"]
[Opening "Queen's Indian"]
[Variation "old main line, 7.Nc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Bd2 f5 
9.Rc1 *

[Event "0x51599de7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 b5 8.O-O 
Bb7 9.Qe2 Nf6 10.f4 Nxd4 *

[Event "0x515ea992"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A47"]
[Opening "Queen's Indian defence"]

1.d4 Nf6 2.Nf3 b6 3.e3 Bb7 4.Bd3 e6 5.O-O c5 6.Nbd2 Be7 7.b3 Nc6 8.a3 cxd4
9.exd4 O-O *

[Event "0x519c6057"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Re1 c5 7.c4 Nc6 8.Nc3 cxd4
9.Nxd4 Nxd4 10.Qxd4 Be6 *

[Event "0x520ec750"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Bd3 Nbd7 8.Qf3 
Nc5 9.f5 *

[Event "0x52133e1b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.Qd2 
Be7 9.O-O-O O-O 10.f4 b5 *

[Event "0x5245e219"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 d5 6.O-O e5 7.Nb3 Be6 8.Bg5 
Nbd7 9.e3 h6 10.Bxf6 Nxf6 *

[Event "0x524a447a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Nc3 Nbd7 7.e4 e5 8.h3 Re8 
9.Be3 a6 10.dxe5 dxe5 *

[Event "0x526680d0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B92"]
[Opening "Sicilian"]
[Variation "Najdorf, Opovcensky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 Nbd7 7.O-O g6 8.a4 b6
9.f4 Bb7 10.Bf3 Qc7 *

[Event "0x52699849"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B62"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Margate (Alekhine) variation"]

1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.Nc3 cxd4 5.Nxd4 Nc6 6.Bg5 e6 7.Bb5 Bd7 8.Bxc6 
bxc6 9.Qf3 Rc8 10.O-O-O Be7 *

[Event "0x528741e8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B66"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
h6 9.Be3 Nxd4 10.Bxd4 Be7 *

[Event "0x528f7bee"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Bxd2+ 7.Qxd2 d6 8.Nc3 
O-O 9.O-O Nbd7 10.d5 e5 *

[Event "0x52a36a11"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Bf1 Bg4 8.h3 Bh5
9.d4 cxd4 10.cxd4 e5 *

[Event "0x52ae528a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Nc3 Nbd7 7.d5 *

[Event "0x52c6c72b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B84"]
[Opening "Sicilian"]
[Variation "Scheveningen (Paulsen), classical variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 a6 7.O-O Be7 8.a4 O-O
9.f4 Qc7 10.Be3 b6 *

[Event "0x52d02aa7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "Charousek (Petrosian) variation"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qc2 c5
9.dxc5 Nc6 10.Rd1 Qa5 *

[Event "0x52d71db2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 d6 7.Bg2 Bd7 8.O-O Rc8
*

[Event "0x5319dad4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O 
h5 9.h3 Nxd4 10.Bxd4 Bc5 *

[Event "0x533a18a5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 h6 7.Be3 Nbd7 8.Qd2 c5 
9.d5 Kh7 10.h3 Nb6 *

[Event "0x533aa4be"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.f4 e5 8.Nf3 Ng4
9.Qd2 g6 10.fxe5 dxe5 11.Qxd8+ *

[Event "0x534ec702"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.f4 b5 8.Nxc6 
Qxc6 9.Be2 Ba3 10.Bd4 Bxb2 *

[Event "0x535f4a96"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Nc3 Nbd7 7.e4 e5 8.a4 a5 
9.h3 b6 10.Re1 *

[Event "0x536acbcc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C75"]
[Opening "Ruy Lopez"]
[Variation "modern Steinitz defence, Rubinstein variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7 6.d4 Nge7 7.Be3 Ng6 8.h4 Be7 
9.g3 h6 10.Nbd2 Bf6 *

[Event "0x538fb325"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A33"]
[Opening "English"]
[Variation "symmetrical, Geller variation"]

1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 6.g3 Qb6 7.Nb3 Bb4 8.Bg2 
Qa6 *

[Event "0x5397c5f0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C65"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 d6 5.c3 Be7 6.Nbd2 O-O 7.O-O Bd7 8.Re1 h6
9.Nf1 Re8 10.Ng3 Bf8 *

[Event "0x5397e49c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D73"]
[Opening "Neo-Gruenfeld, 5.Nf3"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.c4 dxc4 6.Na3 O-O 7.Nxc4 *

[Event "0x53e8e6bf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B88"]
[Opening "Sicilian"]
[Variation "Sozin, Leonhardt variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3 Be7 8.O-O 
O-O 9.f4 d5 *

[Event "0x54239abe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B37"]
[Opening "Sicilian"]
[Variation "accelerated fianchetto, Maroczy bind, 5...Bg7"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Nc2 d6 7.Be2 Nf6 8.Nc3 
O-O 9.O-O Bd7 10.Ne3 Rc8 *

[Event "0x5433e8d5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Qc7 7.Bg2 Nf6 8.O-O 
Nxd4 9.Qxd4 Bc5 10.Bf4 d6 *

[Event "0x543b9bf0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Bxc5 7.e3 Nc6 8.Nf3 
d5 9.a3 Qa5 10.O-O-O Be7 *

[Event "0x5446b13b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D46"]
[Opening "QGD semi-Slav"]
[Variation "Chigorin defence"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.e3 Bd6 5.Nc3 Nf6 6.Bd3 Nbd7 7.e4 dxe4 8.Nxe4 
Nxe4 9.Bxe4 Nf6 *

[Event "0x5451322b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
Qa5 9.Nf3 Nc6 10.Rb1 b6 *

[Event "0x545a011f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
O-O 9.Rc1 Nd7 10.Bd3 e5 *

[Event "0x547fd63f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ c6 8.cxd5 
Nxd5 9.Bxe7 Nxe7 *

[Event "0x54841926"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A95"]
[Opening "Dutch"]
[Variation "stonewall with Nc3"]

1.Nf3 e6 2.g3 f5 3.Bg2 Nf6 4.O-O Be7 5.c4 O-O 6.Nc3 c6 7.d4 d5 8.Bg5 Nbd7 
9.Qd3 Ne4 10.Bxe7 Qxe7 *

[Event "0x548f6f6a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B11"]
[Opening "Caro-Kann"]
[Variation "two knights, 3...Bg4"]

1.e4 c6 2.Nf3 d5 3.Nc3 Bg4 4.h3 Bxf3 5.Qxf3 e6 6.g3 Nf6 7.Bg2 Bc5 8.e5 
Nfd7 9.Qg4 Nxe5 10.Qxg7 Ng6 *

[Event "0x54bcef95"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Nxc6 bxc6 7.Bd3 d5 8.O-O 
Nf6 9.Bf4 Be7 10.Re1 O-O *

[Event "0x5502d988"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A45"]
[Opening "Trompovsky attack (Ruth, Opovcensky opening)"]

1.d4 Nf6 2.Bg5 Ne4 3.Bh4 g5 4.f3 gxh4 5.fxe4 c5 *

[Event "0x550697b2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E58"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with 8...Bxc3"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O Nc6 8.a3 Bxc3 
9.bxc3 Qc7 10.cxd5 exd5 *

[Event "0x552c3279"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.Qd2 e5 8.d5 Nc5 
9.f3 h6 10.Be3 a5 *

[Event "0x55324366"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Nge7 7.Be3 Nxd4 8.Qxd4
b5 9.Bg2 Nc6 10.Qd1 Bb7 *

[Event "0x553b4a19"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B31"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (with ...g6, without ...d6)"]

1.Nf3 c5 2.e4 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 Nf6 6.c3 O-O 7.d4 cxd4 8.cxd4 
d5 9.e5 Ne8 10.h3 Bd7 *

[Event "0x55446e97"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.O-O a6 6.Nxd4 Qc7 7.e4 d6 8.b3 Bd7 
*

[Event "0x554d2343"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.a3 Bd6 
9.cxd5 exd5 10.b4 a6 *

[Event "0x55d567f5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B32"]
[Opening "Sicilian defence"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qb6 5.Nb5 Nf6 6.Be3 Qd8 7.N1c3 a6 8.Nd4
d6 9.Be2 e6 10.O-O Be7 *

[Event "0x55dbc070"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B06"]
[Opening "Robatsch defence"]
[Variation "two knights variation"]

1.d4 g6 2.e4 Bg7 3.Nc3 d6 4.Nf3 a6 5.Bg5 b5 6.a4 b4 7.Nd5 a5 8.Bc4 h6 9.
Bh4 Bb7 10.e5 dxe5 *

[Event "0x5614541b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 h6 7.Be3 e5 8.d5 c6 9.
Qd2 h5 10.Bg5 *

[Event "0x562a1301"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A11"]
[Opening "English"]
[Variation "Caro-Kann defensive system"]

1.c4 c6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Bg4 5.cxd5 Bxf3 6.Bxf3 cxd5 7.O-O e6 8.Nc3
Nc6 9.d3 Be7 *

[Event "0x56492d54"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D73"]
[Opening "Neo-Gruenfeld, 5.Nf3"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.c4 dxc4 6.Na3 Nc6 7.Nxc4 Be6 8.b3 a5
9.Bb2 Bd5 10.Rc1 O-O *

[Event "0x5658470e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D53"]
[Opening "QGD"]
[Variation "4.Bg5 Be7"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 h6 6.Bh4 O-O 7.Rc1 b6 8.Bxf6 Bxf6
9.cxd5 exd5 10.Qf3 Bb7 *

[Event "0x56c0bd57"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Nge7 7.Nb3 d6 8.Bg2 
Bd7 9.O-O Nc8 10.a4 Be7 *

[Event "0x56db0902"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 a6 7.O-O c5 8.Bd3 Nbd7
9.Qe2 Qc7 10.Rd1 b6 *

[Event "0x56e6b0e5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.Nf3 Qf5 7.Qb3 Nc6 8.a3 
Ba5 9.e3 O-O *

[Event "0x57086f76"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.e3 O-O 8.Rc1 dxc4 
9.Bxc4 Nbd7 10.O-O h6 *

[Event "0x57212c1e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B04"]
[Opening "Alekhine's defence"]
[Variation "modern, Larsen variation"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 dxe5 5.Nxe5 g6 6.Bc4 c6 7.O-O Bg7 8.Re1 
O-O 9.Bb3 Be6 10.Nd2 Nd7 *

[Event "0x572793fd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E54"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system with 7...dc"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 d5 7.O-O dxc4 8.Bxc4 
cxd4 9.exd4 a6 10.a4 Bd7 *

[Event "0x57295c5c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 Nc6 5.c4 cxd4 6.Nxd4 Bc5 7.Nc2 d5 8.cxd5 
Nxd5 9.O-O O-O 10.a3 a5 *

[Event "0x572aa13a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "Charousek (Petrosian) variation"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qc2 c5
9.dxc5 dxc4 10.Bxc4 Nd7 *

[Event "0x57372914"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Yates variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 a5 7.O-O O-O 8.Bg5 Be7
9.Qc2 c5 10.dxc5 bxc5 *

[Event "0x577356ec"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B69"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf6"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O 6.Qb3 c5 7.cxd5 cxd4 8.exd4 
Nbd7 9.Be2 Nb6 10.Bf3 e6 *

[Event "0x57973c01"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B14"]
[Opening "Caro-Kann"]
[Variation "Panov-Botvinnik attack, 5...e6"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6 6.Nf3 Bb4 7.cxd5 Nxd5 8.Qc2 
Nc6 9.Be2 O-O 10.O-O Nf6 *

[Event "0x57a85ca8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 Nc6 6.Qa4 Bb4+ 7.Bd2 Bd6 8.Na3 
Ne4 9.Nxc4 Nxd2 10.Nfxd2 Bd7 11.Nxd6+ *

[Event "0x57b8ad3e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.g3 dxc4 6.Qxc4 b5 7.Qd3 Bb7 8.Bg2 
Nbd7 9.O-O a6 10.Nbd2 c5 *

[Event "0x57bc291c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Bb4+ 5.Nbd2 O-O 6.Bg2 b6 7.O-O Bb7 8.cxd5 
exd5 9.Ne5 Re8 10.a3 *

[Event "0x57c05656"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.Nf3 Bg7 5.O-O O-O 6.c4 d6 7.Nc3 Qe8 8.d5 Na6 
9.Nd4 Bd7 10.e4 fxe4 *

[Event "0x57c2cd21"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Nc3 Nbd7 7.e4 e5 8.h3 c6 
9.a4 a5 10.Be3 exd4 *

[Event "0x57f4d034"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A12"]
[Opening "English"]
[Variation "London defensive system"]

1.c4 c6 2.Nf3 d5 3.b3 Nf6 4.g3 Bf5 5.Bg2 e6 6.Bb2 Nbd7 7.O-O Bd6 8.d3 O-O 
9.Nbd2 e5 10.cxd5 cxd5 11.Rc1 Qe7 *

[Event "0x58024786"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 O-O 7.a3 Be7 8.Nf4 d6
9.Be2 e5 10.Nfd5 Nxd5 *

[Event "0x581bf5b2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B56"]
[Opening "Sicilian"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 g6 7.Be3 Bg7 8.Qd2 
O-O 9.Be2 Ng4 10.Bxg4 Bxg4 *

[Event "0x581def79"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Bxc5 7.Nf3 b6 8.e3 
Bb7 9.Rd1 a6 10.Be2 Be7 *

[Event "0x5821fbe7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A53"]
[Opening "Old Indian defence"]

1.d4 Nf6 2.c4 d6 3.Nf3 Bg4 4.Qb3 Qc8 5.h3 Bxf3 6.Qxf3 g6 7.g3 Bg7 8.Bg2 
Nc6 9.e3 O-O *

[Event "0x58325296"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B96"]
[Opening "Sicilian"]
[Variation "Najdorf, Polugayevsky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 b5 8.Qf3 Bb7 
9.Bd3 Nbd7 10.O-O-O Qb6 *

[Event "0x5859db69"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.b3 Ne4 8.Bb2 Bf5 
9.e3 Nd7 10.Qe2 a5 *

[Event "0x586aae9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A16"]
[Opening "English"]
[Variation "Anglo-Gruenfeld defense"]

1.c4 Nf6 2.Nc3 d5 3.cxd5 Nxd5 4.Nf3 g6 5.e4 Nxc3 6.dxc3 Qxd1+ 7.Kxd1 *

[Event "0x58836cd0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 d6 7.Bg2 Bd7 8.O-O Nf6
9.a4 Be7 10.h3 *

[Event "0x5889d57e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian"]
[Variation "dragon variation"]

1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.Nc3 cxd4 5.Nxd4 g6 6.g3 Nc6 7.Bg2 Bg4 8.Nde2 
Bg7 9.h3 Bxe2 10.Qxe2 Rc8 *

[Event "0x58cd4e12"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B53"]
[Opening "Sicilian, Chekhover variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.Be3 Nc6 6.Qb6 Qxb6 7.Bxb6 Nf6 8.Nc3
Bg4 9.Be2 e6 10.O-O-O Rc8 *

[Event "0x58e0853"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 Bb4+ 5.Nbd2 O-O 6.Bg2 b6 7.O-O Bb7 8.cxd5 
exd5 9.Ne5 Bd6 10.Ndf3 Ne4 *

[Event "0x58ede1fc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3 c6 8.O-O Na6 
9.dxe5 dxe5 10.Qxd8 Rxd8 *

[Event "0x59128b7a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 O-O 7.a3 Be7 8.d5 
exd5 9.cxd5 Bc5 10.b4 Bb6 *

[Event "0x591c267b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E38"]
[Opening "Nimzo-Indian"]
[Variation "classical, 4...c5"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 Na6 6.a3 Bxc3+ 7.Qxc3 Nxc5 8.b4
Nce4 9.Qd4 d5 10.c5 h6 *

[Event "0x59307a00"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.O-O d5 7.cxd5 cxd5 8.Ne5 e6
9.Nc3 Nfd7 10.f4 Nc6 *

[Event "0x5970be42"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be3 Nf6 7.Bd3 Qc7 8.O-O 
Ne5 9.Be2 *

[Event "0x597636d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C77"]
[Opening "Ruy Lopez"]
[Variation "Treybal (Bayreuth) variation (exchange var. deferred)"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.Bxc6 dxc6 6.d3 Bd6 7.Nbd2 Be6 8.b3 
Nd7 9.Bb2 c5 10.Nc4 f6 *

[Event "0x597b54be"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B13"]
[Opening "Caro-Kann"]
[Variation "Panov-Botvinnik attack"]

1.c4 c6 2.e4 d5 3.exd5 cxd5 4.d4 Nf6 5.Nc3 Nc6 6.Bg5 dxc4 7.Bxc4 h6 8.Be3 
e6 9.Nf3 Be7 10.O-O O-O *

[Event "0x597c578c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B72"]
[Opening "Sicilian"]
[Variation "dragon, classical, Nottingham variation"]

1.e4 c5 2.Nc3 d6 3.Nge2 g6 4.d4 cxd4 5.Nxd4 Nf6 6.Be2 Bg7 7.Nb3 Nc6 8.Be3 
O-O 9.g4 Be6 10.g5 Nd7 *

[Event "0x597fcaea"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Qc7 7.Bg2 d6 8.O-O Bd7
9.a4 Nf6 10.Nb3 Be7 *

[Event "0x598b0a9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B56"]
[Opening "Sicilian"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be3 e6 7.f4 e5 8.Nf3 Be7
9.Qd2 Ng4 10.O-O-O Nxe3 *

[Event "0x59941f4a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Adams attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.h3 e6 7.Be3 b5 8.Bd3 Bb7 
9.a3 Nbd7 10.f4 Rc8 *

[Event "0x59c34dd8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C42"]
[Opening "Petrov"]
[Variation "classical attack, Chigorin variation"]

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Nc6 7.O-O Be7 8.Re1 
Bg4 9.c4 Bxf3 10.Qxf3 Nxd4 *

[Event "0x59c5396c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Qf3 Qb6 8.Nb3 Qc7
9.Bd3 b5 10.g4 Bb7 *

[Event "0x59e07cda"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "Charousek (Petrosian) variation"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qb3 c5
9.dxc5 Na6 10.cxd5 Nxc5 *

[Event "0x59ef3a19"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C88"]
[Opening "Ruy Lopez"]
[Variation "closed, anti-Marshall 8.a4"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.a4 Bb7
9.d3 d6 10.Bd2 b4 *

[Event "0x5a04180b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B72"]
[Opening "Sicilian"]
[Variation "dragon, 6.Be3"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 a6 7.f3 b5 8.a4 b4 9.
Nd5 Nxd5 10.exd5 Bb7 *

[Event "0x5a05e7f6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B21"]
[Opening "Sicilian"]
[Variation "Grand Prix attack"]

1.e4 c5 2.f4 Nc6 3.Nf3 e6 4.Nc3 a6 5.d4 cxd4 6.Nxd4 Nge7 7.Nb3 d6 8.Be3 b5
9.Bd3 Bb7 10.O-O Ng6 *

[Event "0x5a06883c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C79"]
[Opening "Ruy Lopez"]
[Variation "Steinitz defence deferred, Rubinstein variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O d6 6.Bxc6+ bxc6 7.d4 Nxe4 8.Qe2
f5 9.Nbd2 Nxd2 10.Nxd2 Be7 *

[Event "0x5a246e1a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 dxc4 7.e3 Be6 8.Ng5 
Bd5 9.e4 h6 10.exd5 hxg5 *

[Event "0x5a3d41c0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.a3 Bd6 
9.b4 dxc4 10.Bxc4 Nbd7 *

[Event "0x5a4efd5d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E74"]
[Opening "King's Indian"]
[Variation "Averbakh, 6...c5"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 h6 8.Be3 e6 9.
h3 exd5 10.exd5 Re8 *

[Event "0x5a51f26b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A63"]
[Opening "Benoni"]
[Variation "fianchetto, 9...Nbd7"]

1.d4 Nf6 2.c4 c5 3.d5 g6 4.Nc3 Bg7 5.g3 O-O 6.Bg2 d6 7.Nf3 e6 8.O-O exd5 
9.cxd5 Nbd7 10.Bf4 Ne8 *

[Event "0x5a70c2f2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B53"]
[Opening "Sicilian, Chekhover variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.c4 Nc6 6.Qe3 g6 7.Be2 Bg7 8.h3 Nf6 
9.O-O O-O 10.Nc3 Rb8 *

[Event "0x5a9d75f6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B07"]
[Opening "Pirc defence"]

1.e4 d6 2.d4 Nf6 3.Nc3 e5 4.dxe5 dxe5 5.Qxd8+ Kxd8 6.Bc4 Be6 7.Bxe6 fxe6 
8.Be3 Nbd7 9.f3 a6 10.Nge2 Bd6 *

[Event "0x5aa16c70"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E35"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation, 5.cd ed"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Bg5 h6 7.Bxf6 Qxf6 8.e3 
O-O 9.Nf3 Bg4 *

[Event "0x5abd3d1b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Yates variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 a5 7.O-O O-O 8.Bg5 Be7
9.Qc2 h6 10.Bxf6 Bxf6 *

[Event "0x5ac8e300"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B55"]
[Opening "Sicilian"]
[Variation "Prins variation, Venice attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3 e5 6.Bb5+ Nbd7 7.Nf5 d5 8.exd5 
a6 9.Bxd7+ Qxd7 10.Ne3 b5 *

[Event "0x5ae0096"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 h6 7.Be3 Nbd7 8.Nf3 *

[Event "0x5afe633e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B93"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 g6 7.e5 dxe5 8.fxe5 
Ng4 9.e6 f5 10.Bc4 Bg7 *

[Event "0x5b0bcc67"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 c5 7.d5 e6 8.Qd2 exd5 9.
cxd5 a6 10.a4 h6 *

[Event "0x5b0f67b7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B05"]
[Opening "Alekhine's defence"]
[Variation "modern variation, 4...Bg4"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 Nc6 6.c4 Nb6 7.exd6 exd6 8.O-O 
Be7 9.b3 O-O 10.Nc3 f5 *

[Event "0x5b13e6a9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C10"]
[Opening "French"]
[Variation "Rubinstein variation"]

1.e4 e6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Bd3 c5 7.O-O cxd4 8.
Nxd4 Be7 9.Re1 O-O 10.c3 a6 *

[Event "0x5b1c2091"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A55"]
[Opening "Old Indian"]
[Variation "main line"]

1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Nf3 Nbd7 5.e4 Be7 6.g3 O-O 7.Bg2 c6 8.O-O Re8 
9.h3 Qc7 *

[Event "0x5b3a3bfe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B93"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 e5 7.Nf3 Nbd7 8.a4 Be7
9.Bd3 b6 10.O-O Bb7 *

[Event "0x5b60a132"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E06"]
[Opening "Catalan"]
[Variation "closed, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Be7 5.Bg2 O-O 6.O-O dxc4 7.Qc2 a6 8.Qxc4 b5
9.Qc2 Bb7 10.Bf4 Nc6 *

[Event "0x5b96ed62"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B67"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 b5 10.f5 Be7 *

[Event "0x5baa6a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B68"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be7"]

1.e4 c5 2.d4 cxd4 3.Nf3 Nc6 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 Be7 10.Be2 Rc8 *

[Event "0x5bacf9c7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Qd3 a6 5.Bg5 Be7 6.e4 Bb7 7.Nbd2 d6 8.Bg2 Nbd7
9.O-O O-O 10.a4 Bc6 *

[Event "0x5be9d497"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Bg2 c5 6.O-O Nc6 7.Ne5 Bd7 8.Na3 
cxd4 9.Naxc4 Bc5 10.Bg5 O-O *

[Event "0x5c35b67a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A11"]
[Opening "English"]
[Variation "Caro-Kann defensive system"]

1.c4 c6 2.Nf3 Nf6 3.g3 d5 4.Bg2 Bg4 5.Ne5 Bh5 6.cxd5 Nxd5 7.Nc3 e6 8.g4 
Bg6 9.h4 Nb4 10.d3 Qd4 11.h5 Qxe5 12.hxg6 fxg6 13.Be4 Qf6 *

[Event "0x5c38c522"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "Charousek (Petrosian) variation"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qb3 c6
9.Be2 *

[Event "0x5c4eb8d5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 c5 7.d5 e6 8.Qd2 h6 9.
Bxh6 Nxe4 10.Nxe4 Qh4+ *

[Event "0x5c60c6d4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B36"]
[Opening "Sicilian"]
[Variation "accelerated fianchetto, Gurgenidze variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Nf6 6.Nc3 Nxd4 7.Qxd4 d6 8.Be2 
Bg7 9.Bd2 O-O 10.Qe3 Bd7 *

[Event "0x5c66c64e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A06"]
[Opening "Reti"]
[Variation "Nimzovich-Larsen attack"]

1.Nf3 d5 2.b3 Bg4 3.Bb2 Nd7 4.e3 e5 5.Be2 Bd6 6.d3 *

[Event "0x5c884880"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B91"]
[Opening "Sicilian"]
[Variation "Najdorf, Zagreb (fianchetto) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 e6 7.Bg2 Be7 8.O-O O-O
9.b3 Qc7 10.Bb2 Bd7 *

[Event "0x5c8e4a47"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D11"]
[Opening "QGD Slav"]
[Variation "4.e3"]

1.d4 Nf6 2.Nf3 d5 3.c4 c6 4.e3 e6 5.Bd3 Nbd7 6.O-O Bd6 7.Nc3 O-O 8.e4 dxc4
9.Bxc4 e5 10.Be3 Qe7 *

[Event "0x5c939bf2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A30"]
[Opening "English"]
[Variation "symmetrical variation"]

1.c4 c5 2.Nf3 Nf6 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nc6 6.O-O e5 7.Nc3 Be6 8.Ng5 
Qxg5 9.Nxd5 Qd8 *

[Event "0x5caeb8ff"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn"]
[Variation "Torre attack"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.c3 h6 5.Bh4 Nc6 6.e3 cxd4 7.exd4 Be7 8.Nbd2 
O-O 9.Bc4 d5 10.Bd3 Qb6 *

[Event "0x5cd661c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B62"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Margate (Alekhine) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Bb5 Bd7 8.Bxc6 
bxc6 9.Qf3 h6 10.Bh4 c5 *

[Event "0x5cda13a5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 c5 7.d5 e6 8.Qd2 exd5 9.
cxd5 a6 10.Nge2 b5 *

[Event "0x5cde85ce"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E54"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system with 7...dc"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 d5 7.O-O dxc4 8.Bxc4 
cxd4 9.exd4 a6 10.a4 Nc6 *

[Event "0x5ce3913e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C69"]
[Opening "Ruy Lopez"]
[Variation "exchange, Bronstein variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Qd6 6.d4 exd4 7.Nxd4 Bd7 8.
Nc3 O-O-O 9.Be3 Qg6 10.Qe2 Nh6 *

[Event "0x5ce478af"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.a4 e5 7.Nf3 Qc7 8.Bg5 
Nbd7 9.Nd2 h6 10.Bxf6 Nxf6 *

[Event "0x5ceab6ce"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
cxd4 9.cxd4 Nc6 10.Bb5 Bd7 *

[Event "0x5cf05c2d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C06"]
[Opening "French"]
[Variation "Tarrasch, closed variation, main line"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 Nc6 7.Ne2 cxd4 8.cxd4 f6
9.exf6 Nxf6 10.Nf3 Bd6 11.O-O O-O 12.Bf4 Bxf4 13.Nxf4 Ne4 14.Nh5 g6 15.Ng3
*

[Event "0x5d049dba"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D45"]
[Opening "QGD semi-Slav"]
[Variation "Stoltz variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nc3 Nbd7 6.Qc2 Bd6 7.Bd3 O-O 8.O-O 
dxc4 9.Bxc4 Qe7 10.a3 a6 *

[Event "0x5d1e92b3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.e3 Nbd7 8.cxd5 
exd5 9.Be2 O-O 10.O-O Ne4 *

[Event "0x5d2440be"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B21"]
[Opening "Sicilian"]
[Variation "Smith-Morra gambit"]

1.e4 c5 2.d4 cxd4 3.c3 Nf6 4.e5 Nd5 5.Qxd4 e6 6.Bc4 Nc6 7.Qe4 d6 8.Nf3 
dxe5 9.Nxe5 Bd6 10.Nxc6 bxc6 *

[Event "0x5d3e8de5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A90"]
[Opening "Dutch defence"]

1.c4 f5 2.g3 Nf6 3.d4 e6 4.Bg2 c6 5.Nh3 d6 6.O-O Be7 7.Nc3 O-O 8.e4 e5 9.
dxe5 dxe5 10.Qxd8 Rxd8 *

[Event "0x5d65f341"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E38"]
[Opening "Nimzo-Indian"]
[Variation "classical, 4...c5"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 Na6 6.a3 Bxc3+ 7.Qxc3 Nxc5 8.b4
Nce4 9.Qd4 d5 10.cxd5 O-O *

[Event "0x5d760288"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ Bc6 8.Qb3 
dxc4 9.Qxc4 O-O 10.e3 Nd5 *

[Event "0x5dbfc9d9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B40"]
[Opening "Sicilian"]
[Variation "Anderssen variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Nxc6 bxc6 7.e5 Nd5 8.Ne4
Qc7 9.f4 Qa5+ 10.Bd2 Qb6 *

[Event "0x5dc8d51e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 c5 7.Bxb4 cxb4 8.O-O 
O-O 9.Nbd2 Qe7 10.Qb3 a5 *

[Event "0x5dd65dff"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bd3 Nc6 7.Ne2 g6 *

[Event "0x5de127dc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Qf3 Qb6 8.Nb3 Qc7
9.g4 b5 10.g5 b4 *

[Event "0x5de21e15"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B52"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky attack, Sokolsky variation"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 Nc6 6.O-O Nf6 7.Nc3 Nd4 8.d3
Nxf3+ 9.Qxf3 g6 10.Qe2 Bg7 *

[Event "0x5de800b7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.f3 
Nbd7 9.g4 b5 10.g5 b4 *

[Event "0x5dedebfe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.a3 Be7 
9.b3 c5 10.Bb2 Nc6 *

[Event "0x5df3d8f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A34"]
[Opening "English"]
[Variation "symmetrical, three knights system"]

1.c4 c5 2.Nc3 Nf6 3.Nf3 d5 4.cxd5 Nxd5 5.d4 cxd4 6.Qxd4 Nxc3 7.Qxc3 Nc6 *

[Event "0x5dfb029c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Bd2 Bxd2+ 6.Qxd2 exd4 7.Qxd4 Nf6 8.
Qxd8+ Kxd8 9.Nc3 Be6 10.Ne5 Nc6 11.Nxc6+ *

[Event "0x5e1030b7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C88"]
[Opening "Ruy Lopez"]
[Variation "closed, anti-Marshall 8.a4"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.a4 Bb7
9.d3 d6 10.Nc3 b4 *

[Event "0x5e427dad"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.e3 e5 7.a3 exd4 8.axb4 
dxc3 9.bxc3 Bf5 10.Qa2 Qxa2 *

[Event "0x5eb38f24"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C46"]
[Opening "Three knights"]
[Variation "Steinitz, Rosenthal variation"]

1.e4 e5 2.Nf3 Nc6 3.Nc3 g6 4.d4 exd4 5.Nd5 Bg7 6.Bg5 Nce7 7.Bc4 c6 8.Nxe7 
Nxe7 9.O-O h6 10.Bh4 O-O *

[Event "0x5eb89bd4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A86"]
[Opening "Dutch with c4 & g3"]

1.d4 f5 2.c4 Nf6 3.g3 d6 4.Nf3 g6 5.Bg2 Bg7 6.d5 Na6 7.O-O O-O 8.Nc3 Nc5 
9.Nd4 e5 10.dxe6 c6 *

[Event "0x5ebb1257"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.a3 Bxc3+ 8.bxc3 
Ba6 9.cxd5 Bxd3 10.Qxd3 Qxd5 *

[Event "0x5ec0e263"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 a6 7.Qd2 Nc6 8.Nge2 Bd7 
9.h4 h5 10.O-O-O b5 *

[Event "0x5ef0c331"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A17"]
[Opening "English"]
[Variation "Nimzo-English opening"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4 4.Qc2 c5 5.a3 Ba5 6.g3 Nc6 7.Bg2 O-O 8.O-O Qe7
9.d3 d6 *

[Event "0x5f1e093f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B54"]
[Opening "Sicilian"]
[Variation "Prins (Moscow) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3 Nc6 6.c4 e6 7.Nc3 Be7 8.Be3 O-O
9.Be2 Re8 10.O-O d5 *

[Event "0x5f2e61ce"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
O-O 9.Nf3 Qa5 10.Rb1 *

[Event "0x5f39d031"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Riumin variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.Nc3 O-O 8.O-O d5
9.Ne5 c6 10.Bf4 dxc4 *

[Event "0x5f82a58c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A29"]
[Opening "English"]
[Variation "four knights, kingside fianchetto"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 Nd4 5.Bg2 Nxf3+ 6.Bxf3 Bb4 *

[Event "0x5f84fcb4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D28"]
[Opening "QGA"]
[Variation "classical, 7...b5"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 a6 7.O-O c5 8.Qe2 b5 
9.Bd3 cxd4 10.exd4 Bb7 *

[Event "0x5fb056df"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.Bg5 dxc4 6.Qxc4 b5 7.Qc2 Bb7 8.e4 
Nbd7 9.Nbd2 a6 10.a4 h6 *

[Event "0x5fc88c69"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B88"]
[Opening "Sicilian"]
[Variation "Sozin, Leonhardt variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3 Nxd4 *

[Event "0x5fcdd137"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E35"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation, 5.cd ed"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Bg5 O-O *

[Event "0x5fdd7e63"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C75"]
[Opening "Ruy Lopez"]
[Variation "modern Steinitz defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7 6.O-O g6 7.d4 Bg7 8.Re1 Nge7 
9.Be3 O-O 10.Nbd2 h6 *

[Event "0x5fdecd6a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B07"]
[Opening "Pirc defence"]

1.e4 d6 2.Nc3 g6 3.d4 Nf6 4.f3 c6 5.Be3 b5 6.Qd2 Nbd7 7.Nh3 Qa5 8.Nf2 a6 
9.Be2 Bg7 10.O-O O-O *

[Event "0x60139811"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Bg2 Nc6 6.Qa4 Bb4+ 7.Bd2 Bd6 8.Nc3 
O-O 9.Qxc4 e5 10.d5 Ne7 *

[Event "0x60548504"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Nc3 Be7 8.Ne5 
Rb8 9.Nxd7 Qxd7 10.Qxc4 b5 *

[Event "0x6062e1f3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B32"]
[Opening "Sicilian defence"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qb6 5.Nb3 Nf6 6.Nc3 e6 7.Qe2 Bb4 8.Bd2 
O-O 9.a3 Bxc3 10.Bxc3 e5 *

[Event "0x6093c57"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B04"]
[Opening "Alekhine's defence"]
[Variation "modern, Larsen variation"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 dxe5 5.Nxe5 c6 6.Bc4 Nd7 7.Nf3 N7f6 8.h3 
Bf5 9.O-O h6 10.Bb3 e6 *

[Event "0x6094ef64"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 e6 8.Nf3 
exd5 9.e3 Qd6 10.Bd3 O-O *

[Event "0x60a2a92b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A34"]
[Opening "English"]
[Variation "symmetrical, Rubinstein system"]

1.c4 c5 2.Nc3 Nf6 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nc7 6.Nf3 Nc6 7.d3 e5 8.Nd2 
Bd7 9.Nc4 b5 10.Ne3 Rc8 11.O-O Nd4 12.f4 exf4 13.gxf4 Be7 *

[Event "0x60c0d85b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B06"]
[Opening "Robatsch (modern) defence"]

1.e4 g6 2.d4 d6 3.Nc3 Bg7 4.Be3 c6 5.Qd2 Nd7 6.f4 b5 7.Nf3 Ngf6 8.e5 b4 9.
exf6 bxc3 10.Qxc3 Nxf6 *

[Event "0x60d9cc7b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E18"]
[Opening "Queen's Indian"]
[Variation "old main line, 7.Nc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Nxe4 
Bxe4 9.Ne1 d5 10.Qa4 Qd7 *

[Event "0x60e62940"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E11"]
[Opening "Bogo-Indian defence, Monticelli trap"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Bxd2+ 7.Qxd2 O-O 8.Nc3
Ne4 9.Qc2 Nxc3 10.Ng5 Qxg5 *

[Event "0x60e8c00d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "Linares variation"]

1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 Nf6 5.Nc3 b5 6.e5 b4 7.exf6 bxc3 8.bxc3 Nd7
9.fxe7 Bxe7 10.Bxc4 Nb6 11.Bb5+ *

[Event "0x6123d6ee"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.e3 O-O 8.Rc1 dxc4 
9.Bxc4 Nbd7 10.O-O a6 *

[Event "0x6142a59c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxc3 7.bxc3 Qxd5 8.e3
c5 9.Bb5+ Nc6 *

[Event "0x6156801f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.Nc3 d5 7.Qb3 Qb6 8.h3 *

[Event "0x61568ae5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A00"]
[Opening "Dunst (Sleipner, Heinrichsen) opening"]

1.Nc3 d5 2.e4 d4 3.Nce2 e5 4.Ng3 Be6 5.Nf3 f6 6.Bb5+ *

[Event "0x61770998"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B12"]
[Opening "Caro-Kann"]
[Variation "advance variation"]

1.e4 c6 2.d4 d5 3.e5 Bf5 4.h4 Qb6 5.g4 Bd7 6.h5 h6 7.f4 e6 8.Nf3 c5 9.c3 
Nc6 10.Rh2 cxd4 *

[Event "0x61b195e0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A14"]
[Opening "English"]
[Variation "Neo-Catalan declined"]

1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 5.O-O O-O 6.b3 c5 7.Bb2 Nc6 8.e3 d4 9.
exd4 cxd4 10.Re1 Qb6 11.d3 Re8 12.Na3 e5 13.Nc2 Bf8 *

[Event "0x61d64fe6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A90"]
[Opening "Dutch defence"]

1.d4 e6 2.c4 f5 3.g3 Nf6 4.Bg2 d5 5.Nf3 c6 6.O-O Bd6 7.b3 Qe7 8.a4 O-O 9.
Ba3 Bxa3 10.Nxa3 a5 *

[Event "0x6209ae11"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B77"]
[Opening "Sicilian"]
[Variation "dragon, Yugoslav attack, 9...Bd7"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Nc6 7.f3 Bg7 8.Bc4 
O-O 9.Qd2 Bd7 10.g4 Qa5 *

[Event "0x6216c679"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.e3 O-O 8.Rc1 Nbd7 
9.cxd5 exd5 10.Bd3 c5 *

[Event "0x6218f4c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E38"]
[Opening "Nimzo-Indian"]
[Variation "classical, 4...c5"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 Na6 6.a3 Qa5 7.Bd2 Nxc5 8.Nf3 
d6 9.Nb5 Bxd2+ 10.Nxd2 Qd8 *

[Event "0x6242199d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.Bf4 Nxc3 7.bxc3 c5 8.e3 
O-O 9.Rb1 cxd4 10.cxd4 Nc6 *

[Event "0x6259b3bb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Re1 Nbd7 7.e4 e5 8.Nc3 Re8
9.h3 c6 *

[Event "0x628e01d5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E55"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system, Bronstein variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4 
Nbd7 9.Qe2 a6 10.a4 b6 *

[Event "0x62a8809b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Qa4+ Bd7 6.Qxc4 Bc6 7.Bg2 Bd5 8.Qd3 
Be4 9.Qd1 c5 10.Nc3 Bc6 *

[Event "0x62d95a18"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B18"]
[Opening "Caro-Kann"]
[Variation "classical, 6.h4"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nf6 8.Ne5 
Bh7 9.Bd3 Bxd3 10.Qxd3 e6 *

[Event "0x62db3481"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A26"]
[Opening "English"]
[Variation "Botvinnik system"]

1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.e4 Nge7 7.Nge2 O-O *

[Event "0x630843a8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A26"]
[Opening "English"]
[Variation "closed system"]

1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Nf3 Nf6 7.O-O O-O 8.Rb1 a5 *

[Event "0x63148466"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E54"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system with 7...dc"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 O-O 6.Nf3 d5 7.O-O dxc4 8.Bxc4 
Nc6 9.a3 Ba5 10.Bd3 cxd4 *

[Event "0x6346e051"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B16"]
[Opening "Caro-Kann"]
[Variation "Bronstein-Larsen variation"]

1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nf6 5.Nxf6+ gxf6 6.c3 Bf5 7.Nf3 e6 8.g3 
Qd5 9.Bg2 Qc4 10.Be3 Nd7 *

[Event "0x63592042"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B40"]
[Opening "Sicilian"]
[Variation "Anderssen variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Ndb5 Bb4 7.a3 Bxc3+ 8.
Nxc3 d5 9.exd5 exd5 10.Bd3 O-O *

[Event "0x636531e8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C64"]
[Opening "Ruy Lopez"]
[Variation "classical defence, Benelux variation  "]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 Nf6 5.O-O O-O 6.d4 Bb6 7.Bg5 h6 8.Bh4 d6 
9.a4 a5 10.Bxc6 bxc6 *

[Event "0x63954139"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "Linares variation"]

1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 Nf6 5.Nc3 b5 6.Bf4 Ba6 7.Nf3 *

[Event "0x640e91cb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A01"]
[Opening "Nimzovich-Larsen attack"]
[Variation "classical variation"]

1.b3 d5 2.Bb2 c5 3.e3 Nc6 4.Bb5 Qc7 5.f4 a6 6.Bxc6+ Qxc6 7.Nf3 Nf6 8.O-O 
g6 9.d3 Bg7 *

[Event "0x6416acc6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "Charousek (Petrosian) variation"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qd2 c6
9.Rd1 b6 10.cxd5 cxd5 *

[Event "0x6436a17d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A52"]
[Opening "Budapest"]
[Variation "Rubinstein variation"]

1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.Bf4 Nc6 5.Nf3 Bb4+ 6.Nbd2 Qe7 7.a3 Ngxe5 8.
Nxe5 Nxe5 9.e3 Bxd2+ 10.Qxd2 d6 *

[Event "0x64404adc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B23"]
[Opening "Sicilian"]
[Variation "Grand Prix attack"]

1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bb5 Nd4 6.Nxd4 cxd4 7.Ne2 Qb6 8.Ba4 
Nf6 9.d3 O-O 10.O-O d6 *

[Event "0x64430ce7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E35"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation, 5.cd ed"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Bg5 h6 7.Bxf6 Qxf6 8.e3 
O-O 9.a3 *

[Event "0x6448e3a9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A87"]
[Opening "Dutch"]
[Variation "Leningrad, main variation"]

1.c4 f5 2.Nf3 Nf6 3.g3 g6 4.Bg2 Bg7 5.d4 O-O 6.O-O d6 7.d5 Na6 8.Nc3 Qe8 
9.Rb1 c5 10.dxc6 bxc6 *

[Event "0x6489fff8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B93"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Qc7 7.Bd3 b5 8.Qf3 Bb7
9.g4 e6 10.g5 Nfd7 *

[Event "0x64d0cc0a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B53"]
[Opening "Sicilian, Chekhover variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.c4 Nc6 6.Qd2 g6 7.b3 Bg7 8.Nc3 Bg4 
9.Bb2 Bxf3 10.gxf3 Nd4 *

[Event "0x64d1ba35"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Bg2 Nc6 6.Qa4 Bd7 7.Qxc4 Na5 8.Qd3 
c5 9.Ne5 Nc6 10.O-O cxd4 *

[Event "0x64d7347e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.cxd5 exd5 5.Nc3 Nf6 6.Qc2 Na6 7.Bg5 Nb4 8.Qd1 
Bf5 9.Rc1 Qa5 10.Bxf6 gxf6 *

[Event "0x6509cbf9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B49"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be2 a6 7.Be3 b5 8.Nxc6 
Qxc6 9.O-O Bb7 10.Bf3 *

[Event "0x653d506a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B30"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (without ...d6)"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 e6 4.O-O Nge7 5.Nc3 a6 6.Bxc6 Nxc6 7.d4 cxd4 8.
Nxd4 Qc7 9.Re1 d6 10.Nxc6 bxc6 *

[Event "0x659a1b0b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D11"]
[Opening "QGD Slav"]
[Variation "4.e3"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 Nbd7 6.O-O Bd6 7.Nbd2 O-O 8.e4 
dxe4 9.Nxe4 Nxe4 10.Bxe4 c5 *

[Event "0x65a30b04"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C15"]
[Opening "French"]
[Variation "Winawer (Nimzovich) variation"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Bd3 dxe4 5.Bxe4 Nf6 6.Bf3 c5 7.Ne2 Nc6 8.a3 
Bxc3+ 9.bxc3 cxd4 10.cxd4 e5 *

[Event "0x65c89838"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B52"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky attack, 3...Bd7"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Nxd7 5.c4 Ngf6 6.Nc3 e6 7.O-O Be7 8.d4
cxd4 9.Qxd4 a6 10.b3 O-O *

[Event "0x65e0f71d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C02"]
[Opening "French"]
[Variation "advance, Wade variation"]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Qb6 5.Nf3 Bd7 6.Be2 cxd4 7.cxd4 Bb5 *

[Event "0x65f69ac7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 Nf6 5.Nc3 e6 6.Nf3 exd5 7.e5 Nfd7 8.Bg5 Be7
9.Bxe7 Qxe7 10.Nxd5 Qd8 *

[Event "0x65fd32b5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 c6 7.Bd3 Nbd7 8.Qc2 
Nh5 9.Bxe7 Qxe7 10.Nge2 g6 *

[Event "0x660d34ae"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E19"]
[Opening "Queen's Indian"]
[Variation "old main line, 9.Qxc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Qc2 
Nxc3 9.Qxc3 f5 10.d5 Bf6 *

[Event "0x660eff5d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.b3 Ne4 8.Bb2 Be6 
9.Nbd2 *

[Event "0x6652a39d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C69"]
[Opening "Ruy Lopez"]
[Variation "exchange, Gligoric variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O f6 6.d4 Bg4 7.c3 Bd6 8.Be3 
Ne7 9.Nbd2 Qc8 10.Qc2 O-O *

[Event "0x6652ff68"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O 
Bd6 9.Nxc6 bxc6 10.f4 e5 *

[Event "0x667592ac"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 c5 7.Qe2 a6 8.dxc5 
Bxc5 9.O-O b5 10.Bd3 Nc6 *

[Event "0x667994a5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B72"]
[Opening "Sicilian"]
[Variation "dragon, classical attack"]

1.e4 c5 2.Nf3 d6 3.Be2 Nf6 4.Nc3 g6 5.d4 cxd4 6.Nxd4 Bg7 7.Be3 Nc6 8.Nxc6 
bxc6 9.e5 dxe5 10.Qxd8+ Kxd8 *

[Event "0x667ea25e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A07"]
[Opening "Reti"]
[Variation "King's Indian attack, Yugoslav variation"]

1.Nf3 d5 2.g3 Nf6 3.Bg2 c6 4.O-O Bg4 5.b3 Nbd7 6.Bb2 e6 7.d3 Bd6 8.Nbd2 
Qe7 *

[Event "0x667ea69d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.d4 Nf6 5.Nc3 cxd4 6.Qxd4 e5 7.Qd3 h6 8.O-O 
a6 9.Bc4 b5 10.Bd5 Rb8 *

[Event "0x6695e457"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C67"]
[Opening "Ruy Lopez"]
[Variation "open Berlin defence, l'Hermet variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6 6.dxe5 Nxb5 7.a4 Nbd4 8.
Nxd4 Nxd4 9.Qxd4 d5 10.Qd3 c6 *

[Event "0x67035e5d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C94"]
[Opening "Ruy Lopez"]
[Variation "closed, Breyer defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.h3 Nb8 10.d3 Nbd7 *

[Event "0x673dbcff"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "modern Scheveningen, main line with Nb3"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Nc6 7.Be2 Be7 8.O-O 
O-O 9.Be3 Bd7 10.Nb3 Rc8 *

[Event "0x6742f21"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.h4 Nc6 8.Rg1 h5 
9.gxh5 Nxh5 10.Be3 Nf6 *

[Event "0x674d3ad5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "semi-Slav"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.e3 f5 5.Bd3 Nf6 6.Qc2 a6 7.Nge2 Bd6 8.f3 O-O 9.
Bd2 b6 10.O-O Qc7 *

[Event "0x675c1644"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Qa4+ Bd7 6.Qxc4 b5 7.Qd3 Na6 8.a3 c5
9.Bg2 Bc6 10.O-O Qb6 *

[Event "0x6767f3bc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Qa4+ Bd7 6.Qxc4 Bc6 7.Bg2 Bd5 8.Qa4+
Qd7 9.Qd1 Nc6 10.Nc3 Bb4 *

[Event "0x67a1d6f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A47"]
[Opening "Queen's Indian defence"]

1.d4 Nf6 2.Nf3 b6 3.Nc3 Bb7 4.Bg5 d5 5.e3 e6 6.Ne5 Be7 7.Bb5+ c6 8.Bd3 
Nbd7 9.f4 a6 *

[Event "0x67b862fe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A23"]
[Opening "English"]
[Variation "Bremen system, Keres variation"]

1.c4 e5 2.Nc3 Nf6 3.g3 c6 4.Nf3 e4 5.Nd4 d5 6.cxd5 cxd5 *

[Event "0x67ccf3b0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.Nf3 Qf5 7.Qxf5 exf5 8.a3
Be7 9.g3 c6 10.Bg2 Be6 *

[Event "0x6817b868"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A80"]
[Opening "Dutch"]

1.d4 f5 2.Nf3 Nf6 3.g3 g6 4.b3 Bg7 5.Bb2 O-O 6.Bg2 d6 7.O-O Ne4 8.c4 Nc6 
9.Nc3 Nxc3 10.Bxc3 Qe8 *

[Event "0x68228e6f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ Qd7 8.Qc2 
dxc4 9.e3 O-O 10.Bxc4 c5 *

[Event "0x6826fbd9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A90"]
[Opening "Dutch defence"]

1.d4 e6 2.c4 f5 3.g3 Nf6 4.Bg2 c6 5.Nf3 d5 6.O-O Bd6 7.Qc2 O-O 8.Bf4 Bxf4 
9.gxf4 Ne4 10.e3 Qe7 *

[Event "0x684911d0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.Bd2 a6 
9.Nxd5 Nxd5 10.cxd5 Bxd2 *

[Event "0x685565ea"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Be7 7.Bd3 O-O 8.Nf3 
Qb6 *

[Event "0x6868583b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C88"]
[Opening "Ruy Lopez"]
[Variation "closed, anti-Marshall 8.a4"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.a4 Bb7
9.d3 d6 10.Nc3 Na5 *

[Event "0x6874698b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B59"]
[Opening "Sicilian"]
[Variation "Boleslavsky variation, 7.Nb3"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 e5 7.Nb3 Be7 8.O-O 
O-O 9.Kh1 a6 10.a4 b6 *

[Event "0x6881204"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.h4 Be7 8.Qf3 Nc6 
9.Bb5 Bd7 10.Bxc6 bxc6 *

[Event "0x68f5d6a9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, Tal variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Be7 7.Be3 Nc6 8.Qf3 
O-O 9.O-O-O Qc7 10.Ndb5 *

[Event "0x69609dee"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C18"]
[Opening "French"]
[Variation "Winawer, advance variation"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Qa5 7.Bd2 Qa4 8.Qb1 c4
9.Nh3 Nc6 10.g3 Bd7 *

[Event "0x696e353c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 c6 7.Bb2 a5 8.c4 Nbd7 
9.Qc2 Re8 10.Rd1 Qc7 *

[Event "0x6987767f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C65"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 d6 5.O-O g6 6.d4 Bd7 7.d5 Ne7 8.Bxd7+ 
Qxd7 9.Re1 Bg7 10.c4 O-O *

[Event "0x6a2d12a4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A40"]
[Opening "Queen's pawn"]
[Variation "Lundin (Kevitz-Mikenas) defence"]

1.d4 Nc6 2.c4 e5 3.d5 Nce7 4.e4 Nf6 5.Nc3 Ng6 6.Be3 Bb4 7.f3 Bxc3+ 8.bxc3 
d6 *

[Event "0x6a2d40ff"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O 
Bd6 9.h3 Bf4 10.Bxf4 Qxf4 *

[Event "0x6a2e5647"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.Bg5 Be7 6.O-O d5 7.c3 Nbd7 8.a4 a6 
9.Nbd2 O-O 10.axb5 axb5 *

[Event "0x6a362e9f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.d4 Nf6 5.O-O cxd4 6.Qxd4 g6 7.e5 dxe5 8.Qxe5
Bg7 9.Re1 e6 10.Qd6 a6 *

[Event "0x6a833d72"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B10"]
[Opening "Caro-Kann defence"]

1.e4 c6 2.Nf3 g6 3.d4 Bg7 4.Nbd2 d6 5.c3 Nf6 6.Bd3 O-O 7.O-O Nbd7 8.a4 e5 
9.Re1 Re8 10.a5 Qc7 *

[Event "0x6a965182"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 e6 8.Nf3 
exd5 9.e3 O-O 10.b4 b6 *

[Event "0x6a9e0562"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C19"]
[Opening "French"]
[Variation "Winawer, advance, Smyslov variation"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.a3 Bxc3+ 6.bxc3 c5 7.a4 Bd7 8.Nf3 Qa5
9.Qd2 Nbc6 10.Bd3 O-O-O *

[Event "0x6aa9e624"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C42"]
[Opening "Petrov"]
[Variation "classical attack"]

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Nc6 7.h3 Be7 8.O-O 
O-O 9.c4 Nb4 10.Be2 dxc4 *

[Event "0x6aba6d5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bd3 Nc6 7.Be3 Be6 8.Nc3 
Qd7 9.Nf3 O-O-O 10.O-O Bg4 *

[Event "0x6abb4921"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C50"]
[Opening "Giuoco Pianissimo"]
[Variation "Canal variation"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3 Nf6 5.Nc3 d6 6.Bg5 h6 7.Bxf6 Qxf6 8.Nd5 
Qd8 9.c3 Bb6 10.a4 O-O *

[Event "0x6ac66c65"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B32"]
[Opening "Sicilian"]
[Variation "Labourdonnais-Loewenthal (Kalashnikov) variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 d6 6.N1c3 a6 7.Na3 b5 8.Nd5 
Be7 9.c4 b4 10.Nc2 a5 *

[Event "0x6ac9799"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C01"]
[Opening "French"]
[Variation "exchange variation"]

1.e4 e6 2.d4 d5 3.exd5 exd5 4.Nf3 Nf6 5.Bd3 Be7 6.O-O O-O 7.Bg5 Bg4 8.Re1 
Re8 9.Nbd2 Nbd7 10.c3 h6 11.Bxf6 Bxf6 12.Qb3 Nb6 *

[Event "0x6ac98aa7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b6 4.Bg2 Bb7 5.O-O c5 6.c4 cxd4 7.Qxd4 d6 8.Nc3 Be7
9.e4 O-O 10.b3 Nbd7 *

[Event "0x6ae2c7f7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B07"]
[Opening "Pirc defence"]

1.e4 d6 2.d4 Nf6 3.Nc3 e5 4.dxe5 dxe5 5.Qxd8+ Kxd8 6.Bc4 Ke8 7.f3 c6 8.Be3
a5 9.a4 Na6 10.Nge2 Bc5 *

[Event "0x6af34f77"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.h4 Be7 8.Rg1 d5 
9.exd5 Nxd5 10.Nxd5 exd5 *

[Event "0x6b033133"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A31"]
[Opening "English"]
[Variation "symmetrical, Benoni formation"]

1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 Bc5 6.Nd6+ Ke7 7.Nxc8+ Qxc8 8.
e3 Rd8 9.Nc3 d6 10.Be2 Nc6 *

[Event "0x6b0d8ae2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.c4 Bg7 5.Nc3 O-O 6.Nh3 e6 7.O-O d6 8.Nf4 c6 9.
Nd3 Nbd7 10.b3 e5 *

[Event "0x6b0e48ac"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B12"]
[Opening "Caro-Kann"]
[Variation "advance variation"]

1.e4 c6 2.d4 d5 3.e5 Bf5 4.Be3 e6 5.Nd2 Nd7 6.c3 Qc7 7.f4 Ne7 8.Be2 O-O-O 
9.Ngf3 h6 10.O-O f6 *

[Event "0x6b1eb217"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 a6 7.Qd2 Nc6 8.Nge2 Rb8 
9.Rc1 *

[Event "0x6b2ca59f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B22"]
[Opening "Sicilian"]
[Variation "Alapin's variation (2.c3)"]

1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 cxd4 5.cxd4 Nf6 6.Nc3 Qd8 7.Nf3 e6 8.Bd3 
Nc6 9.O-O Be7 10.Re1 O-O *

[Event "0x6b2d6494"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 e6 5.Bxc4 c5 6.O-O Nf6 7.Bd3 Nbd7 8.Qe2 
cxd4 9.exd4 b5 10.a4 bxa4 *

[Event "0x6b40e766"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B32"]
[Opening "Sicilian"]
[Variation "Labourdonnais-Loewenthal (Kalashnikov) variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 d6 6.c4 Be7 7.N1c3 a6 8.Na3 
Be6 9.Be2 Rc8 10.O-O Bg5 *

[Event "0x6b599d3b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O 
b5 9.Qe2 Bb7 10.Rad1 Ne5 *

[Event "0x6b624ba4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Qc7 7.Bg2 Nge7 8.Nb3 
Ng6 9.a4 b6 10.O-O Rb8 *

[Event "0x6b656b70"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A19"]
[Opening "English"]
[Variation "Mikenas-Carls, Sicilian variation"]

1.c4 Nf6 2.Nc3 e6 3.e4 c5 4.e5 Ng8 5.Nf3 Nc6 6.d4 cxd4 7.Nxd4 Nxe5 8.Ndb5 
a6 9.Nd6+ Bxd6 10.Qxd6 f6 11.Bf4 Nf7 12.Qa3 Ne7 *

[Event "0x6b68fc23"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ Bc6 8.Qc2 
dxc4 9.e3 b5 10.a4 b4 *

[Event "0x6b6b496c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 d6 7.Bg2 Bd7 8.O-O Nf6
9.Re1 Rc8 10.Nxc6 Bxc6 *

[Event "0x6b9a7e23"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.Nf3 Qf5 7.Qb3 Nc6 8.Bd2 
O-O 9.e3 Bd6 10.Nb5 e5 *

[Event "0x6ba423f1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3 Ng4 8.Bg5 f6 
9.Bh4 Qd7 10.Bg3 *

[Event "0x6bc9820c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 c5 7.Qe2 cxd4 8.exd4 
Be7 9.O-O O-O 10.Nc3 a6 *

[Event "0x6bddb4d0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B06"]
[Opening "Robatsch defence"]
[Variation "two knights variation"]

1.e4 g6 2.d4 d6 3.Nc3 Bg7 4.Nf3 Bg4 5.Be2 Nc6 6.Be3 e5 7.dxe5 dxe5 8.Qxd8+
Rxd8 9.Nd5 Rc8 10.Bb5 Bd7 *

[Event "0x6bed21db"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D28"]
[Opening "QGA"]
[Variation "classical, 7...b5"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 c5 5.Nf3 a6 6.O-O Nf6 7.Qe2 b5 8.Bd3 cxd4
9.exd4 Be7 10.Bg5 Bb7 *

[Event "0x6bf5e93f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C17"]
[Opening "French"]
[Variation "Winawer, advance, 5.a3"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Ba5 6.b4 cxb4 7.Nb5 Nc6 8.axb4 
Bxb4+ 9.c3 Be7 10.Ba3 Nh6 *

[Event "0x6c074ca7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Bxd2+ 7.Qxd2 O-O 8.Nc3
d6 9.Qc2 c5 10.d5 exd5 *

[Event "0x6c2a5f4a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E62"]
[Opening "King's Indian"]
[Variation "fianchetto, Kavalek (Bronstein) variation"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.Nc3 d6 7.O-O Qa5 8.h3 e5 9.
e4 Be6 10.d5 cxd5 *

[Event "0x6c561e3c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.Nge2 cxd4 8.Nxd4 
Nc6 9.Qd2 Nxd4 10.Bxd4 Be6 *

[Event "0x6c5df6ad"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.Bf4 Nxc3 7.bxc3 c5 8.e3 
O-O 9.cxd5 cxd4 10.cxd4 Qxd5 *

[Event "0x6c5e1aa6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 d5 5.O-O Nc6 6.c4 dxc4 7.Ne5 Bd7 8.Na3 
cxd4 9.Naxc4 Nxe5 10.Nxe5 Qb6 *

[Event "0x6c835c61"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Nc3 Be7 8.Ne5 
O-O 9.Nxd7 Qxd7 10.Qxc4 b5 *

[Event "0x6c857e3c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.O-O d5 6.Nxd4 Be7 7.c4 O-O 8.cxd5 
Nxd5 9.Nc3 Nxc3 10.bxc3 Nd7 *

[Event "0x6cce944d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 c5 6.O-O Nc6 7.Qa4 Bd7 8.dxc5 
Na5 9.Qa3 Rc8 10.b4 cxb3 *

[Event "0x6cd7f03d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A36"]
[Opening "English"]
[Variation "ultra-symmetrical variation"]

1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.b3 e6 6.Bb2 Nge7 7.Qc1 d6 8.f4 O-O 
9.Ne4 e5 10.fxe5 Nxe5 *

[Event "0x6ce8f6a5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Bd2 Bxd2+ 6.Nbxd2 exd4 7.Bxc4 Nc6 
8.O-O Qf6 9.b4 a6 10.Re1 Nge7 *

[Event "0x6cf9b95a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C66"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence, hedgehog variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O d6 5.d4 Bd7 6.Nc3 Be7 7.Re1 exd4 8.Nxd4 
O-O 9.Bf1 Re8 10.b3 Nxd4 *

[Event "0x6d1d0f57"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C49"]
[Opening "Four knights"]
[Variation "symmetrical variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.Nc3 Bb4 5.O-O O-O 6.d3 d6 7.Bxc6 bxc6 8.Ne2 
Re8 9.Ng3 d5 10.Bg5 h6 *

[Event "0x6d5eb4b8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn"]
[Variation "Torre attack"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.c3 h6 5.Bh4 b6 *

[Event "0x6d62e3a6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nf3 Be7 8.Bc4 
O-O 9.O-O Be6 10.Bb3 b5 *

[Event "0x6d6b1a39"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C95"]
[Opening "Ruy Lopez"]
[Variation "closed, Breyer, Borisenko variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.h3 Nb8 10.d4 Nbd7 *

[Event "0x6d791056"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.Nf3 Bg7 5.O-O O-O 6.c4 d6 7.Nc3 Qe8 8.Nd5 Nxd5
9.cxd5 Qb5 10.Ng5 c6 *

[Event "0x6dc96245"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 c6 8.Nf3 
cxd5 9.e3 O-O 10.Be2 Nc6 *

[Event "0x6def21ec"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.Bh4 Nxc3 7.bxc3 c5 8.cxd5 
Qxd5 9.e3 Nc6 10.Be2 cxd4 *

[Event "0x6e3f1853"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 a6 7.O-O c5 8.Bd3 cxd4
9.exd4 Be7 10.Ne5 Nc6 *

[Event "0x6e652e0b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 O-O 7.a3 Be7 8.d5 
exd5 9.cxd5 Bc5 10.b4 Bd6 *

[Event "0x6eb7dd5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Nge7 7.f4 b5 8.Be3 
Nxd4 9.Qxd4 Nc6 10.Qb6 Qxb6 *

[Event "0x6ebcfbf3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ Qd7 8.Qc2 O-O
9.e3 h6 10.Bh4 dxc4 *

[Event "0x6ebd224f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "semi-Slav, Noteboom variation"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 5.a4 Bb4 6.e4 b5 7.Bg5 *

[Event "0x6ec38a3a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 d5 7.c5 Ne4 8.g3 *

[Event "0x6ec773c8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f3 e6 7.Be3 b5 8.g4 b4 9.
Nce2 h6 10.c4 Qc7 *

[Event "0x6ec8e4b7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Re1 Nbd7 7.e4 e5 8.Nc3 
exd4 *

[Event "0x6efc06c6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D11"]
[Opening "QGD Slav"]
[Variation "4.e3"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 Nbd7 6.O-O Bd6 7.Nc3 O-O 8.e4 dxe4
9.Nxe4 Nxe4 10.Bxe4 h6 *

[Event "0x6f04a68f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D11"]
[Opening "QGD Slav"]
[Variation "4.e3"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 Nbd7 6.O-O dxc4 7.Bxc4 b5 8.Bd3 
Bb7 9.Nc3 a6 10.e4 c5 *

[Event "0x6f15b8e1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B06"]
[Opening "Robatsch defence"]

1.e4 g6 2.d4 Bg7 3.Nc3 c5 4.dxc5 Qa5 5.Bd2 Qxc5 6.Nd5 Na6 7.Nf3 Bxb2 8.Rb1
Bg7 9.Bxa6 bxa6 10.O-O a5 *

[Event "0x6f3bc076"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn"]
[Variation "Torre attack"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.c3 Nc6 5.e3 Qb6 6.Qb3 d5 7.Nbd2 Bd7 8.Be2 
cxd4 9.exd4 Qxb3 10.axb3 Be7 *

[Event "0x6f58869e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 Nc6 7.g5 Nd7 8.Be3 Be7
9.h4 O-O 10.Bc4 *

[Event "0x6f65c15e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B07"]
[Opening "Robatsch defence"]
[Variation "Geller's system"]

1.e4 g6 2.d4 Bg7 3.c3 d6 4.Nf3 Nf6 5.Bd3 O-O 6.O-O Nbd7 7.Re1 e5 8.Nbd2 b6
9.a4 a6 10.Nc4 Bb7 *

[Event "0x6f871e8e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "semi-Slav, Marshall gambit"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4 Bb4 *

[Event "0x6f91de75"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B96"]
[Opening "Sicilian"]
[Variation "Najdorf, 7.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qc7 8.Qe2 Nc6
9.O-O-O Nxd4 10.Rxd4 Be7 *

[Event "0x6f9a9b28"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B72"]
[Opening "Sicilian"]
[Variation "dragon, classical, Amsterdam variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.Be3 Nc6 8.Qd2 
Bd7 9.O-O O-O 10.Rad1 a6 *

[Event "0x6fbf116d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.Bd2 dxc4
9.Bxc4 Nbd7 10.Qe2 a6 *

[Event "0x6ff454ca"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A36"]
[Opening "English"]
[Variation "symmetrical, Botvinnik system"]

1.c4 c5 2.g3 g6 3.Nc3 Nc6 4.Bg2 Bg7 5.e4 e6 6.Nge2 Nge7 7.d3 d6 8.O-O O-O 
9.Be3 Nd4 *

[Event "0x6ff96c1c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A88"]
[Opening "Dutch"]
[Variation "Leningrad, main variation with c6"]

1.Nf3 f5 2.g3 Nf6 3.Bg2 g6 4.O-O Bg7 5.c4 O-O 6.Nc3 d6 7.d4 c6 8.Qc2 Kh8 
9.b3 Be6 10.Bb2 Bg8 *

[Event "0x6ffc0dce"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 d5 6.O-O e5 7.Nf3 Nc6 8.c4 d4 
9.e3 Bc5 10.exd4 exd4 11.Re1+ *

[Event "0x6fffe9bd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bd3 Nc6 7.Be3 Be6 8.Nc3 
Qd7 9.Nf3 O-O-O 10.h3 Nb4 *

[Event "0x7020ce7c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C51"]
[Opening "Evans gambit"]
[Variation "Paulsen variation"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Bc5 6.O-O d6 7.d4 exd4 8.cxd4 
Bb6 9.d5 Na5 10.Bb2 Ne7 *

[Event "0x7049bbe3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C02"]
[Opening "French"]
[Variation "advance, Euwe variation"]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Bd7 6.a3 c4 7.h4 Nge7 8.h5 h6 *

[Event "0x706e8886"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C05"]
[Opening "French"]
[Variation "Tarrasch, closed variation"]

1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.f4 c5 6.c3 Nc6 7.Ndf3 cxd4 8.cxd4 
Qb6 9.h4 Bb4+ 10.Kf2 f6 11.Be3 Be7 12.Qd2 O-O *

[Event "0x70a7a9ed"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.g3 dxc4 6.Qxc4 b5 7.Qc2 Bb7 8.Bg2 
Nbd7 9.O-O c5 10.Bg5 Rc8 *

[Event "0x70b8a05c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C82"]
[Opening "Ruy Lopez"]
[Variation "open, Motzko attack"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.c3 Bc5 10.Qd3 f5 *

[Event "0x711254ce"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b6 4.Bg2 Bb7 5.O-O c5 6.c4 cxd4 7.Qxd4 d6 8.Nc3 a6 
9.Bg5 Nbd7 10.Nd2 Bxg2 *

[Event "0x716e7002"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C01"]
[Opening "French"]
[Variation "exchange variation"]

1.e4 e6 2.d4 d5 3.exd5 exd5 4.Bd3 Nc6 5.c3 Bd6 6.Qf3 Be6 7.Ne2 Qd7 *

[Event "0x71790a94"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B66"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
h6 9.Be3 Bd7 10.f3 b5 *

[Event "0x7198d72d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E18"]
[Opening "Queen's Indian"]
[Variation "old main line, 7.Nc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Bd2 f5 
9.Qc2 Bf6 10.Rad1 Nxc3 *

[Event "0x71b71de"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D86"]
[Opening "Gruenfeld"]
[Variation "exchange, classical variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Ne2 
Nc6 9.Be3 O-O 10.Rc1 Qa5 *

[Event "0x71cc0d9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "QGD Slav"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.e3 Nf6 5.Nbd2 c5 6.dxc5 Bxc5 7.a3 *

[Event "0x71eab9a6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A73"]
[Opening "Benoni"]
[Variation "classical, 9.O-O"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.e4 Bg7 8.Be2 O-O 
9.O-O Na6 10.Bg5 h6 *

[Event "0x71f75ce3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B14"]
[Opening "Caro-Kann"]
[Variation "Panov-Botvinnik attack, 5...g6"]

1.c4 c6 2.e4 d5 3.exd5 cxd5 4.d4 Nf6 5.Nc3 g6 6.Qb3 Bg7 7.cxd5 O-O 8.Be2 
Nbd7 9.Bf3 Nb6 10.a4 a5 *

[Event "0x7210506e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B89"]
[Opening "Sicilian"]
[Variation "Sozin, 7.Be3"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Be3 a6 8.Qe2 
Be7 9.O-O-O O-O 10.f4 Qc7 *

[Event "0x721d2c45"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.Nf3 Qf5 7.Qd1 c5 8.e3 
cxd4 9.exd4 O-O 10.Bd3 Qh5 *

[Event "0x7240db08"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D53"]
[Opening "QGD"]
[Variation "4.Bg5 Be7"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.Nf3 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qb3 c5
9.cxd5 cxd4 10.Nxd4 Bxd4 *

[Event "0x727abe60"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.e3 f5 5.Nc3 Nf6 6.Be2 Bd6 7.O-O Ne4 8.Ne5 O-O 
9.f3 Nxc3 10.bxc3 b6 *

[Event "0x7286476f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.Bh4 Nxc3 7.bxc3 dxc4 8.
Qa4+ Qd7 9.Qxc4 b6 10.Bg3 *

[Event "0x72893c27"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E54"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system with 7...dc"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 d5 7.O-O dxc4 8.Bxc4 
cxd4 9.exd4 b6 10.Re1 Bb7 *

[Event "0x728c8d15"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 a6 6.O-O Qc7 7.Nb3 Be7 8.Bf4 
d6 9.c4 Nbd7 10.Nc3 O-O *

[Event "0x72954810"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3 Ng4 8.Bg5 f6 
9.Bh4 Qd7 10.O-O f5 *

[Event "0x72988315"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C42"]
[Opening "Petrov"]
[Variation "classical attack, Chigorin variation"]

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.Re1 
Bg4 9.c4 Nf6 10.cxd5 Qxd5 *

[Event "0x729bfcb9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Nc6 7.Nf3 Be7 8.Bd3 
Nb4 9.O-O Nxd3 10.cxd3 O-O *

[Event "0x72a5b59c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B06"]
[Opening "Robatsch defence"]
[Variation "two knights, Suttles variation"]

1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.Nf3 d6 5.Be3 Qb6 6.Rb1 Nf6 7.h3 Qc7 8.Qd2 O-O 
9.Bd3 e5 10.O-O Re8 *

[Event "0x72fa287f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 c5 7.d5 e6 8.Qd2 exd5 9.
cxd5 a6 10.a4 Re8 *

[Event "0x72feb5ec"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 c5 5.Nf3 Nf6 6.Qe2 cxd4 7.exd4 Nc6 8.O-O 
Be7 9.Rd1 Nb4 *

[Event "0x73258d95"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E74"]
[Opening "King's Indian"]
[Variation "Averbakh, 6...c5"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 b5 8.cxb5 a6 9.
a4 Qa5 10.Bd2 Nbd7 *

[Event "0x7328636"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D97"]
[Opening "Gruenfeld"]
[Variation "Russian, Alekhine (Hungarian) variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 a6 8.e5 b5 
9.Qb3 Nfd7 10.e6 fxe6 *

[Event "0x732de72f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B35"]
[Opening "Sicilian"]
[Variation "accelerated fianchetto, modern variation with Bc4"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 d6 8.f3 
Nd7 9.Bb3 Nb6 10.h4 h5 *

[Event "0x7362d52a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be2 a6 7.Be3 Be7 8.f4 Nf6
9.g4 *

[Event "0x736a3767"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Qc7 7.Bg2 d6 8.O-O Bd7
9.a4 Nf6 10.Nde2 *

[Event "0x73789c63"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Riumin variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.Nc3 O-O 8.O-O 
Na6 9.Rc1 c5 10.Bf4 cxd4 *

[Event "0x738c7a9c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 Nf6 2.Nf3 d5 3.c4 dxc4 4.e3 e6 5.Bxc4 c5 6.Qe2 cxd4 7.exd4 Nc6 8.O-O 
Be7 9.Be3 O-O 10.Nc3 Qa5 *

[Event "0x73a711bf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b6 4.Bg2 Bb7 5.O-O c5 6.c4 cxd4 7.Qxd4 d6 8.Nc3 a6 
9.e4 Nbd7 10.Qe3 Be7 *

[Event "0x73b63085"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.c3 cxd4 7.cxd4 Be7 8.Bg5 
O-O 9.Qd3 Qb6 10.Nbd2 Nc6 *

[Event "0x73ba3f26"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E35"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation, 5.cd ed"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Bg5 h6 7.Bh4 c5 8.dxc5 
g5 9.Bg3 Ne4 10.e3 Qa5 *

[Event "0x740cb11"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian"]
[Variation "dragon variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.g3 Nc6 7.Bg2 Nxd4 8.Qxd4 
Bg7 9.O-O O-O 10.Qb4 Rb8 *

[Event "0x74238bbd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.Nc3 Nf6 4.d4 cxd4 5.Nxd4 a6 6.Be3 e6 7.Bd3 b5 8.f4 Bb7 
9.Qf3 Nbd7 10.O-O Rc8 *

[Event "0x7425aa2e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B09"]
[Opening "Pirc"]
[Variation "Austrian attack, 6.e5"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.e5 dxe5 7.dxe5 Qxd1+ 8.Kxd1
Rd8+ 9.Bd3 Nd5 10.Nxd5 Rxd5 *

[Event "0x747b8b69"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D55"]
[Opening "QGD"]
[Variation "Neo-orthodox variation, 7.Bxf6"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bxf6 Bxf6 8.Qc2 
Nc6 9.Be2 *

[Event "0x74a3468"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D28"]
[Opening "QGA"]
[Variation "classical, 7...b5"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 e6 5.Bxc4 c5 6.O-O Nf6 7.Qe2 b5 8.Bd3 cxd4
9.exd4 Be7 10.a4 bxa4 *

[Event "0x74af2905"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Qa4+ Bd7 6.Qxc4 c5 7.dxc5 Bc6 8.Nc3 
Nbd7 9.Be3 Rc8 10.Bg2 Nd5 *

[Event "0x74c2e55a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 Nbd7 7.Bd3 Nf8 8.Qc2 
g6 9.Nge2 Ne6 10.Bh4 c6 *

[Event "0x74e82b12"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 c5 7.d5 e6 8.Qd2 exd5 9.
Nxd5 Be6 10.Nxf6+ Bxf6 *

[Event "0x74ecee3a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B35"]
[Opening "Sicilian"]
[Variation "accelerated fianchetto, modern variation with Bc4"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 d6 8.f3 
Qb6 9.Bb5 Qc7 10.Qd2 Bd7 *

[Event "0x74f5a5f5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E74"]
[Opening "King's Indian"]
[Variation "Averbakh, 6...c5"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.dxc5 Qa5 8.Bd2 
dxc5 9.e5 Nfd7 10.f4 Nc6 *

[Event "0x74fe3589"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "Charousek (Petrosian) variation"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qc2 
Nc6 9.a3 a6 10.Rc1 Re8 *

[Event "0x75177c81"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Qf3 Qb6 8.Nb3 Nc6
9.Bd3 Be7 10.Be3 Qc7 *

[Event "0x751de23"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A32"]
[Opening "English"]
[Variation "symmetrical variation"]

1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Bb4 6.Bd2 Nc6 7.a3 Be7 8.Bg5 
O-O 9.e3 d5 10.Be2 h6 11.Bh4 *

[Event "0x755ced4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.f4 b5 8.Nxc6 
Qxc6 9.Be2 Bb7 10.Bf3 Rc8 *

[Event "0x756526d0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B49"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Qc7 7.Be3 b5 8.Nxc6 
Qxc6 9.e5 Bb7 10.Bf3 Qc7 *

[Event "0x75829b2d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D22"]
[Opening "QGA"]
[Variation "Alekhine defence"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 Bg4 5.Bxc4 e6 6.Qb3 Bxf3 7.gxf3 b5 8.Be2 
c5 *

[Event "0x75cd8603"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bd3 Nc6 7.Ne2 Bg4 8.f3 
Be6 9.Nbc3 Nb4 10.Be4 c6 *

[Event "0x75dd649"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B61"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Larsen variation, 7.Qd2"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Bd7 7.Qd2 Rc8 8.
O-O-O Nxd4 9.Qxd4 Rxc3 10.Qxc3 Nxe4 *

[Event "0x75f73bf0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 d6 7.Bg2 Bd7 8.O-O Be7
9.Nxc6 Bxc6 10.a4 Nf6 *

[Event "0x76208567"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E19"]
[Opening "Queen's Indian"]
[Variation "old main line, 9.Qxc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 O-O 7.O-O Ne4 8.Qc2 
Nxc3 9.Qxc3 f5 10.Ne5 *

[Event "0x762a36af"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D58"]
[Opening "QGD"]
[Variation "Tartakower (Makagonov-Bondarevsky) system"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 b6 8.Bd3 dxc4 
9.Bxc4 Bb7 10.O-O c5 *

[Event "0x76440473"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Qf3 Qb6 8.Nb3 Qc7
9.g4 b5 10.g5 Nfd7 *

[Event "0x76547f5d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A98"]
[Opening "Dutch"]
[Variation "Ilyin-Genevsky variation with Qc2"]

1.c4 f5 2.Nf3 Nf6 3.g3 d6 4.d4 e6 5.Bg2 Be7 6.O-O O-O 7.Nc3 Qe8 8.Qc2 Qh5 
9.Re1 Nc6 10.d5 Nb4 *

[Event "0x7658c5fb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.Bh4 Nxc3 7.bxc3 dxc4 8.
Qa4+ Nd7 9.e3 c6 *

[Event "0x7661dc60"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.Bg5 c5 6.c3 Na6 7.Bxf6 gxf6 8.O-O 
Qb6 9.Nbd2 d5 10.a4 Be7 *

[Event "0x767382e8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Yates variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 a5 7.O-O O-O 8.Bf4 Be7
9.Nc3 Ne4 10.Rc1 d6 *

[Event "0x76740f47"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 e6 8.Nf3 
exd5 9.e3 a5 10.Be2 O-O *

[Event "0x769c7e7a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.e3 f5 5.Be2 Nf6 6.O-O Bd6 7.b3 Qe7 8.a4 a5 9.
Ba3 Bxa3 10.Nxa3 O-O *

[Event "0x76a5d75c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.cxd5 exd5 5.Nc3 Nf6 6.Qc2 Na6 7.a3 Nc7 8.Bg5 g6
9.e3 Bf5 10.Bd3 Bxd3 *

[Event "0x76b46e62"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
Qa5 9.Nf3 Nc6 10.Rc1 cxd4 *

[Event "0x76b57c75"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A22"]
[Opening "English"]
[Variation "Bremen, Smyslov system"]

1.c4 e5 2.Nc3 Nf6 3.g3 Bb4 4.Bg2 O-O 5.Nf3 Re8 6.O-O e4 7.Ne1 c6 *

[Event "0x77140a92"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.Bd3 b5 8.a3 Bb7 
9.f4 Nbd7 10.Qf3 Nc5 *

[Event "0x775589d2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 Nc6 6.O-O a6 7.e3 Bd7 8.Qe2 b5 
9.Nc3 Be7 10.Ne5 Nxe5 *

[Event "0x775fe433"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 b5 8.Nxc6 
Qxc6 9.O-O Bb7 10.Qe2 *

[Event "0x77774948"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
Nc6 9.a3 Bd6 10.Nbd2 O-O *

[Event "0x77c07114"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.cxd5 
exd5 9.Bd2 a6 10.Rc1 Bd6 *

[Event "0x77de41a8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 dxc4 7.e3 c5 8.Bxc4 
cxd4 9.Nxd4 Bd7 10.O-O *

[Event "0x77f88e2e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C45"]
[Opening "Scotch game"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Nxc6 Qf6 6.Qd2 dxc6 7.Nc3 Bd4 8.
Bc4 Be6 9.Bxe6 fxe6 10.O-O O-O-O *

[Event "0x7846ae56"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C45"]
[Opening "Scotch"]
[Variation "Potter variation"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Nb3 Bb6 6.a4 Qf6 7.Qe2 a6 8.Nc3 
Nge7 9.Nd5 Nxd5 10.exd5+ Ne7 *

[Event "0x787c6c5e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B56"]
[Opening "Sicilian"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be3 e5 7.Ndb5 a6 8.Na3 
b5 9.Nd5 Rb8 10.Nxf6+ Qxf6 *

[Event "0x787d6360"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D98"]
[Opening "Gruenfeld"]
[Variation "Russian, Smyslov variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 
Nfd7 9.O-O-O Nb6 10.Qc5 e6 *

[Event "0x788ac78d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Riumin variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.Nc3 O-O 8.O-O d5
9.cxd5 Nxd5 10.Qc2 Nd7 *

[Event "0x78940c0f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B61"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Larsen variation, 7.Qd2"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 Bd7 7.Qd2 Rc8 8.
O-O-O h6 9.Bxf6 gxf6 10.Nf5 Qa5 *

[Event "0x78960ac6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B07"]
[Opening "Pirc"]
[Variation "150 attack"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be3 c6 5.Qd2 b5 6.Bd3 Nbd7 7.Nf3 e5 8.dxe5 
dxe5 9.h3 Bg7 10.a4 b4 *

[Event "0x78a634a6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
cxd4 9.cxd4 Nc6 10.Rd1 Qa5 *

[Event "0x78ba250a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.h4 Be7 8.Rg1 d5 
9.Bb5+ *

[Event "0x78c8eafb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B30"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (without ...d6)"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 d6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Bf1 e5 8.h3 Be7 
9.d4 O-O 10.dxc5 dxc5 *

[Event "0x78f0b82a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 a6 6.O-O Nc6 7.e3 Bd7 8.Nbd2 b5 
9.Ne5 Nd5 10.Nxd7 Qxd7 *

[Event "0x78f6fbb5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A93"]
[Opening "Dutch"]
[Variation "stonewall, Botwinnik variation"]

1.d4 e6 2.c4 f5 3.Nf3 Nf6 4.g3 Be7 5.Bg2 O-O 6.O-O d5 7.b3 c6 8.Bb2 Bd7 9.
Nbd2 Be8 10.Ne5 Nbd7 *

[Event "0x790308c8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.O-O c6 6.Nbd2 O-O 7.c4 Ne4 8.b3 c5 
9.Bb2 Nxd2 10.Qxd2 dxc4 *

[Event "0x79126965"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.O-O c6 6.c4 O-O 7.cxd5 cxd5 8.Ne5 
Nbd7 9.Nc3 e6 10.Bg5 Qa5 *

[Event "0x791aa5ea"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B00"]
[Opening "King's pawn opening"]

1.e4 d6 2.d4 Nf6 3.Nd2 g6 4.Ngf3 Bg7 5.Bd3 O-O 6.O-O Nc6 7.c3 Nh5 8.Nc4 e5
9.dxe5 Nxe5 10.Nfxe5 dxe5 *

[Event "0x7922e634"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b6 4.Bg2 Bb7 5.O-O c5 6.c4 cxd4 7.Qxd4 d6 8.Nc3 a6 
9.Rd1 Nbd7 10.Ng5 Bxg2 *

[Event "0x7944eaef"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B22"]
[Opening "Sicilian"]
[Variation "Alapin's variation (2.c3)"]

1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 Bg4 6.dxc5 Qxc5 7.h3 Bh5 8.Na3 
Nbd7 9.Be3 Qc8 10.g4 Bg6 *

[Event "0x7980a6d7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Nge7 7.O-O Nxd4 8.
Qxd4 Nc6 9.Qd3 Bc5 10.a3 O-O *

[Event "0x79959d76"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A38"]
[Opening "English"]
[Variation "symmetrical, main line with d3"]

1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d3 d5 8.cxd5 
Nxd5 9.Nxd5 Qxd5 *

[Event "0x799c9a30"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D45"]
[Opening "QGD semi-Slav"]
[Variation "Stoltz variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nc3 Nbd7 6.Qc2 Bd6 7.Bd3 O-O 8.O-O 
dxc4 9.Bxc4 a6 10.Rd1 b5 *

[Event "0x79fa1156"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 Nbd7 7.Bd3 O-O 8.Nf3 
Re8 9.Qc2 Nf8 10.h3 c6 *

[Event "0x7a06e82e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 d5 6.O-O e5 7.Nb3 Be6 8.c4 Nc6
9.cxd5 Nxd5 10.N1d2 Be7 *

[Event "0x7a0eff0b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Bd3 Qc7 8.O-O b5 
9.a3 *

[Event "0x7a22dc54"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B40"]
[Opening "Sicilian"]
[Variation "Anderssen variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Nxc6 bxc6 7.e5 Nd5 8.Ne4
Qc7 9.f4 Qb6 10.c4 Bb4+ *

[Event "0x7a296f38"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B95"]
[Opening "Sicilian"]
[Variation "Najdorf, 6...e6"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.Qd3 Be7 8.O-O-O 
Nbd7 9.f4 Qc7 10.Be2 h6 *

[Event "0x7a4eca88"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "semi-Slav, Noteboom variation"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 5.e3 *

[Event "0x7a68d5e5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D22"]
[Opening "QGA"]
[Variation "Alekhine defence"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 Nf6 5.Bxc4 b5 6.Be2 Bb7 7.a4 b4 8.Nbd2 e6 
9.O-O c5 10.Nc4 Nc6 *

[Event "0x7a704a2f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.cxd5 exd5 5.Nc3 Nf6 6.Bg5 Bf5 7.Qb3 Nbd7 8.e4 
Bxe4 9.Nxe4 dxe4 10.Bc4 Qe7 *

[Event "0x7a896c15"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A62"]
[Opening "Benoni"]
[Variation "fianchetto variation"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7 8.Bg2 O-O 
9.O-O Na6 10.e4 Nc7 *

[Event "0x7aa4457"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B97"]
[Opening "Sicilian"]
[Variation "Najdorf, Poisoned pawn variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 
Qxb2 9.Rb1 Qa3 10.Be2 Be7 *

[Event "0x7aaae63f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni"]
[Variation "Nimzovich (knight's tour) variation"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Nd2 Nbd7 8.e4 a6 
9.a4 Bg7 10.Be2 O-O *

[Event "0x7acce3bc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.O-O d6 7.b3 e5 8.dxe5 dxe5 
9.Ba3 Re8 *

[Event "0x7aeb0c21"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni"]
[Variation "Uhlmann variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.Bg5 h6 8.Bh4 a6 
9.a4 g5 10.Bg3 Nh5 *

[Event "0x7af40741"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E83"]
[Opening "King's Indian"]
[Variation "Saemisch, 6...Nc6"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6 7.Qd2 a6 8.Nge2 Bd7 
9.Nc1 Qb8 10.Nb3 Nd8 *

[Event "0x7b01a5e8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B75"]
[Opening "Sicilian"]
[Variation "dragon, Yugoslav attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 a6 8.g4 b5 
9.Qd2 Bb7 10.O-O-O Nbd7 *

[Event "0x7b0fc69e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bd3 Nc6 7.Ne2 Bg4 8.f3 
Be6 9.Nbc3 Bc4 10.Bxc4 Nxc4 *

[Event "0x7b1b6df4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.c3 Na6 7.a4 *

[Event "0x7b2cd376"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B22"]
[Opening "Sicilian"]
[Variation "Alapin's variation (2.c3)"]

1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4 5.Qxd4 e6 6.Nf3 Nc6 7.Qe4 d6 8.Bb5 Bd7
9.c4 Nb6 10.exd6 Bxd6 *

[Event "0x7b2f9d0a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B58"]
[Opening "Sicilian"]
[Variation "Boleslavsky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5 7.Nf3 h6 8.O-O 
Be7 9.Re1 O-O 10.h3 Kh8 *

[Event "0x7b5dc516"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B39"]
[Opening "Sicilian"]
[Variation "accelerated fianchetto, Breyer variation"]

1.Nf3 g6 2.e4 c5 3.d4 cxd4 4.Nxd4 Bg7 5.c4 Nc6 6.Be3 Nf6 7.Nc3 Ng4 8.Qxg4 
Bxd4 9.Bxd4 Nxd4 10.O-O-O e5 *

[Event "0x7b6c9d6a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C18"]
[Opening "French"]
[Variation "Winawer, advance variation"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Qa5 7.Bd2 Qa4 8.Nf3 
Nc6 9.Qb1 c4 10.g3 Nge7 *

[Event "0x7b8c8437"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B05"]
[Opening "Alekhine's defence"]
[Variation "modern variation, 4...Bg4"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 e6 6.h3 Bh5 7.c4 Nb6 8.exd6 cxd6
9.Nc3 N8d7 10.O-O Be7 *

[Event "0x7b969259"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B72"]
[Opening "Sicilian"]
[Variation "dragon, 6.Be3"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.h3 Nc6 8.Bc4 
O-O 9.Bb3 Bd7 10.O-O Qc7 *

[Event "0x7ba392c0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "Charousek (Petrosian) variation"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qb3 c6
9.Rd1 Nd7 10.Bd3 Rb8 *

[Event "0x7bcb6f1c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B93"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 e5 7.Nf3 Nbd7 8.Bd3 b5
9.O-O Bb7 10.a3 g6 *

[Event "0x7c32e792"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B22"]
[Opening "Sicilian"]
[Variation "Alapin's variation (2.c3)"]

1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4 5.cxd4 d6 6.Nf3 Nc6 7.Nc3 dxe5 8.dxe5 
Nxc3 9.Qxd8+ Kxd8 10.bxc3 Bg4 *

[Event "0x7c414e16"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Yates variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 a5 7.O-O O-O 8.Bf4 Be7
9.Nc3 Ne4 10.Na4 d5 *

[Event "0x7c430f1d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E06"]
[Opening "Catalan"]
[Variation "closed, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 Be7 5.Bg2 O-O 6.O-O dxc4 7.Qc2 a6 8.Qxc4 b5
9.Qc2 Bb7 10.Bg5 Be4 *

[Event "0x7c494fca"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B58"]
[Opening "Sicilian"]
[Variation "Boleslavsky variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 e5 7.Nf3 h6 8.Be3 
Be7 9.Qd2 Be6 10.Rd1 a6 *

[Event "0x7c4fd1b0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3 Ng4 8.Bg5 f6 
9.Bc1 Nc6 10.h3 exd4 *

[Event "0x7c56def5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E17"]
[Opening "Queen's Indian"]
[Variation "anti-Queen's Indian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 O-O 7.d5 Bb4 8.Bd2 c6 
9.dxe6 dxe6 10.O-O *

[Event "0x7c609e16"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C10"]
[Opening "French"]
[Variation "Rubinstein variation"]

1.e4 e6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Bd3 Nxe4 7.Bxe4 Nf6 8.
Bg5 Qd6 9.Bxf6 gxf6 10.Qe2 Bd7 *

[Event "0x7c6f1c8c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.Qc2 *

[Event "0x7ca67f8c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Bd3 Nbd7 8.Nf3 b5
*

[Event "0x7cad9880"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B53"]
[Opening "Sicilian, Chekhover variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Bd7 5.c4 Nc6 6.Qd2 Nf6 7.Nc3 g6 8.b3 Bg7
9.Bb2 O-O 10.Be2 a6 *

[Event "0x7cb5f071"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "QGD Slav"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nbd2 c5 6.b3 cxd4 7.exd4 Nc6 8.Bb2 Be7
9.Bd3 dxc4 10.bxc4 Nxd4 *

[Event "0x7cbe33df"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C19"]
[Opening "French"]
[Variation "Winawer, advance, positional main line"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.a3 Bxc3+ 6.bxc3 c5 7.Nf3 b6 8.Ng5 h6 
9.Qh5 g6 10.Qh3 Qc7 *

[Event "0x7cd997e8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.Nf3 Bg7 5.b3 O-O 6.O-O d6 7.Bb2 Nc6 8.d5 Nb4 
9.c4 a5 10.Nd4 Bd7 *

[Event "0x7d057fbb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E75"]
[Opening "King's Indian"]
[Variation "Averbakh, main line"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 e6 8.Nf3 h6 9.
Bh4 exd5 10.cxd5 a6 *

[Event "0x7d27043"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A80"]
[Opening "Dutch"]

1.d4 f5 2.Nf3 Nf6 3.g3 g6 4.c4 Bg7 5.Nc3 O-O 6.Bg2 d6 7.O-O Qe8 8.d5 a5 9.
Be3 h6 10.c5 Na6 *

[Event "0x7d2de26e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Bb4+ 5.Nbd2 O-O 6.Bg2 b6 7.O-O Bb7 8.Ne5 
Nc6 9.Nxc6 Bxc6 10.Qc2 Qe8 *

[Event "0x7d352da3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 d5 6.O-O e5 7.Nb3 Be6 8.c4 Nc6
9.cxd5 Nxd5 10.Bd2 Be7 *

[Event "0x7d3dded0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A80"]
[Opening "Dutch"]

1.d4 f5 2.Nf3 Nf6 3.c4 g6 4.g3 Bg7 5.b4 O-O 6.Bb2 c6 7.Bg2 Ne4 8.O-O a5 9.
b5 cxb5 10.cxb5 a4 *

[Event "0x7d3f844a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 d5 7.c5 Ne4 8.Bd2 
Nxd2 9.Qxd2 b6 10.a3 Bxc3 *

[Event "0x7d5bb342"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B33"]
[Opening "Sicilian"]
[Variation "Pelikan, Chelyabinsk variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 
b5 9.Nd5 Be7 10.Nxe7 Qxe7 *

[Event "0x7d608fc5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B08"]
[Opening "Pirc"]
[Variation "classical system, 5.Be2"]

1.d4 d6 2.e4 Nf6 3.Nc3 g6 4.Be2 Bg7 5.Nf3 c6 6.O-O O-O 7.a4 a5 8.Be3 Na6 
9.Nd2 Nb4 10.Ncb1 e5 *

[Event "0x7d77c699"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxc3 7.bxc3 Qxd5 8.e3
c5 9.Bb5+ Bd7 10.c4 Qe4 *

[Event "0x7d99266a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B12"]
[Opening "Caro-Kann"]
[Variation "advance variation"]

1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nf3 e6 5.Be2 Nd7 6.O-O Bg6 7.c3 Rc8 8.Nbd2 Nh6 
9.Nb3 Nf5 10.Bd2 Be7 *

[Event "0x7dad773b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B60"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Qb6 7.Nb3 e6 8.Be2 
a6 9.O-O Qc7 10.f4 Be7 *

[Event "0x7db6e3a9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B12"]
[Opening "Caro-Kann"]
[Variation "advance variation"]

1.e4 c6 2.d4 d5 3.e5 Bf5 4.Be3 e6 5.Nd2 Nd7 6.Ngf3 Bg6 7.Be2 Nh6 8.O-O Nf5
9.c4 Nxe3 10.fxe3 Be7 *

[Event "0x7dbe37cb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B12"]
[Opening "Caro-Kann"]
[Variation "advance variation"]

1.e4 c6 2.d4 d5 3.e5 Bf5 4.c4 e6 5.Nc3 Ne7 6.Nge2 dxc4 7.Ng3 Nd7 8.Bxc4 
Nb6 9.Bb3 Qd7 10.O-O Bg6 *

[Event "0x7dd3f51a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D97"]
[Opening "Gruenfeld"]
[Variation "Russian, Alekhine (Hungarian) variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 a6 8.Qb3 c5
9.dxc5 Qa5 10.Qb6 Qxb6 *

[Event "0x7dd7a9f9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "modern exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.cxd5 Nxd5 6.e4 Nxc3 7.bxc3 c5 8.Rb1 
O-O 9.Be2 cxd4 10.cxd4 Qa5+ *

[Event "0x7dd97ec0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A27"]
[Opening "English"]
[Variation "three knights system"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 f5 4.d4 e4 5.Bg5 Be7 *

[Event "0x7de6618b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.Qd2 Qe8 *

[Event "0x7dee127b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni"]
[Variation "Uhlmann variation"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Bg5 Bg7 8.Nd2 a6 
9.a4 O-O 10.e4 Re8 *

[Event "0x7def88d1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.Nbd2 Nbd7 8.b3 a5 
9.a4 b6 10.Bb2 Bb7 *

[Event "0x7dff1b44"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Be2 Be7 8.O-O Qc7
9.Bf3 O-O 10.Be3 Nc6 *

[Event "0x7e0a6aa8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian"]
[Variation "dragon variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.g3 Nc6 7.Nde2 Bg7 8.Bg2 
O-O 9.h3 Rb8 10.a4 a6 *

[Event "0x7e139ce2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B67"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f3 Be7 10.Kb1 O-O *

[Event "0x7e52abfa"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C43"]
[Opening "Petrov"]
[Variation "modern attack, Symmetrical variation"]

1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 d5 5.dxe5 Be7 6.O-O Nc5 7.Be2 O-O 8.Be3 
Nc6 9.Nc3 Be6 10.Nb5 Nd7 *

[Event "0x7e8b1f48"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 Nc6 5.O-O cxd4 6.Nxd4 Qb6 7.Nxc6 *

[Event "0x7ea97437"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Riumin variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.Nc3 O-O 8.O-O d5
9.Ne5 c6 10.Qa4 a6 *

[Event "0x7eafd874"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B53"]
[Opening "Sicilian, Chekhover variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.c4 Nc6 6.Qd2 Nf6 7.Nc3 e6 8.Be2 Be7
9.O-O O-O 10.b3 Bd7 *

[Event "0x7eeb7f7c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E06"]
[Opening "Catalan"]
[Variation "closed, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 Be7 5.Bg2 O-O 6.O-O dxc4 7.Qc2 a6 8.a4 Bd7 
9.Qxc4 Bc6 10.Bg5 Bd5 *

[Event "0x7f03e400"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Bd3 Nbd7 8.Nf3 g6
9.O-O Bg7 10.a4 O-O *

[Event "0x7f3c3c0f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.Bg5 Na6 7.Nbd2 Be7 8.c3 O-O
9.Qc2 cxd4 10.cxd4 Nb4 *

[Event "0x7f5ea5ec"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Nc6 7.Nf3 Be7 8.Bd3 
O-O 9.O-O Nb4 10.Qe1 *

[Event "0x7f7423a0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A42"]
[Opening "Modern defence"]
[Variation "Averbakh system"]

1.d4 d6 2.c4 g6 3.Nc3 Bg7 4.e4 e5 5.Nf3 exd4 6.Nxd4 Nc6 7.Be3 Nge7 8.Be2 
O-O 9.O-O f5 10.Nxc6 bxc6 *

[Event "0x7f85bd2a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.e3 f5 5.Nc3 Nf6 6.Be2 Bd6 7.Qc2 O-O 8.O-O Nbd7 
9.Rb1 Ne4 10.b4 a6 *

[Event "0x7f8b0e3c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.cxd5 
exd5 9.Bd2 Bd6 *

[Event "0x7f9ab062"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A25"]
[Opening "English"]
[Variation "Sicilian reversed"]

1.c4 e5 2.Nc3 Nc6 3.g3 f5 4.Bg2 Nf6 5.d3 Bb4 6.Bd2 O-O *

[Event "0x7fa08a5a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
Qa5 9.Nf3 Bg4 10.Rb1 a6 *

[Event "0x7fb865ca"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B63"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...Be7"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O
Nxd4 9.Qxd4 a6 10.h4 Bd7 *

[Event "0x7fb98416"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E54"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system with 7...dc"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4 
cxd4 9.exd4 a6 10.a4 b6 *

[Event "0x7fd5683"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.O-O d5 6.Nxd4 Be7 7.c4 O-O 8.cxd5 
Nxd5 9.Nd2 b6 10.e4 Nb4 *

[Event "0x7fd5f235"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Nge7 7.Be3 Nxd4 8.Qxd4
b5 9.Qd2 *

[Event "0x7fd61b3f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.cxd5 
exd5 9.Bd2 a6 10.Ne5 Bd6 *

[Event "0x7ff7972f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.Qd2 e5 8.d5 c6 9.
f3 cxd5 10.cxd5 Bd7 *

[Event "0x80181e8f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B58"]
[Opening "Sicilian"]
[Variation "Boleslavsky variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 e5 7.Nf3 h6 8.O-O 
Be7 9.Re1 O-O 10.h3 a6 *

[Event "0x8077d166"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B22"]
[Opening "Sicilian"]
[Variation "Alapin's variation (2.c3)"]

1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Be3 cxd4 6.cxd4 g6 7.Nc3 Qa5 8.Bc4 
Bg7 9.h3 O-O 10.Nf3 a6 *

[Event "0x80d83132"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Bd2 Bxd2+ 6.Nbxd2 exd4 7.Bxc4 Nc6 
8.O-O Nf6 9.e5 Nd5 10.Qb3 Na5 11.Qb5+ *

[Event "0x80f1201c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Nc3 Nbd7 7.e4 e5 8.a4 a6 
9.dxe5 dxe5 10.b3 Re8 *

[Event "0x81164259"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B12"]
[Opening "Caro-Kann"]
[Variation "advance variation"]

1.e4 c6 2.d4 d5 3.e5 c5 4.dxc5 Nc6 5.Nf3 Bg4 6.Bb5 e6 7.b4 Ne7 8.Nbd2 g6 
9.h3 Bxf3 10.Nxf3 Bg7 *

[Event "0x812f4302"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, Benko variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Qb6 7.Nde2 e6 8.O-O 
Be7 9.Bb3 O-O 10.h3 Na5 *

[Event "0x81377787"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B89"]
[Opening "Sicilian"]
[Variation "Sozin, 7.Be3"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Be3 a6 8.Bb3 
Be7 9.f4 Qc7 10.O-O b5 *

[Event "0x813a4ca8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 h6 7.Be3 c5 8.dxc5 Qa5 
9.Bd2 Qxc5 10.Nf3 Bg4 *

[Event "0x81b5ed11"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A30"]
[Opening "English"]
[Variation "symmetrical variation"]

1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O g6 6.Nc3 Bg7 7.d4 cxd4 8.Nxd4 
Bxg2 9.Kxg2 Qc8 10.b3 Qb7+ 11.f3 Nc6 *

[Event "0x81c030c4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 dxc4 7.e4 c5 8.dxc5 
Qa5 9.e5 Rd8 10.Bd2 Ng4 *

[Event "0x823a0a3c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.Bg5 c5 6.c3 Na6 7.Bxf6 Qxf6 8.O-O 
Qd8 9.Na3 Rb8 10.c4 bxc4 *

[Event "0x8240c157"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bd3 Nc6 7.Ne2 Bg4 8.Be3 
Qd7 9.Nbc3 O-O-O 10.Be4 f5 *

[Event "0x82656992"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A88"]
[Opening "Dutch"]
[Variation "Leningrad, main variation with c6"]

1.Nf3 f5 2.g3 Nf6 3.Bg2 g6 4.d4 Bg7 5.O-O O-O 6.c4 d6 7.Nc3 c6 8.Qc2 Qc7 
9.e4 fxe4 10.Nxe4 Nxe4 *

[Event "0x8291993b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B92"]
[Opening "Sicilian"]
[Variation "Najdorf, Opovcensky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be6 8.Bf3 
Nbd7 9.O-O Be7 10.Re1 O-O *

[Event "0x82bd50bf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn"]
[Variation "Torre attack"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.c3 Nc6 5.e3 Qb6 6.Qc2 d5 7.Bd3 Bd7 8.Nbd2 
cxd4 9.exd4 Rc8 10.Qb3 Bd6 *

[Event "0x82ca99f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Yates variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 a5 7.O-O O-O 8.Nc3 Ne4
9.Rc1 Nxc3 10.Bxc3 Be4 *

[Event "0x82eb62a6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E17"]
[Opening "Queen's Indian"]
[Variation "anti-Queen's Indian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 O-O 7.d5 Bb4 8.Bd2 c6 
9.dxe6 dxe6 10.Qc2 Nbd7 *

[Event "0x8323703f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Bb4+ 5.Nbd2 O-O 6.Bg2 b6 7.O-O Bb7 8.cxd5 
Bxd5 9.Qc2 Be7 *

[Event "0x837278f6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Qc7 7.Bg2 Nf6 8.O-O 
Be7 9.Re1 O-O 10.Nxc6 dxc6 *

[Event "0x83ede64a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C10"]
[Opening "French"]
[Variation "Rubinstein variation"]

1.e4 e6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nd7 5.Nf3 Be7 6.Bd3 Ngf6 7.Nxf6+ Bxf6 8.
Qe2 c5 9.d5 Nb6 10.Bb5+ Kf8 *

[Event "0x83ffb2c4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian"]
[Variation "dragon variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O O-O 8.Nb3 
a6 9.f4 Nc6 10.Bf3 Be6 *

[Event "0x84028398"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Bxc5 7.Nf3 Nc6 8.a3 
d5 9.Rd1 e5 10.Bg5 d4 *

[Event "0x8419b1cc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.Qd2 e5 8.d5 Qe8 
9.h4 Nc5 10.Bxf6 Bxf6 *

[Event "0x8419ef59"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D55"]
[Opening "QGD"]
[Variation "Neo-orthodox variation, 7.Bxf6"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bxf6 Bxf6 8.Qb3 c6
9.Rd1 a5 *

[Event "0x84417ec8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.cxd5 
exd5 9.Ne5 c5 10.Bd2 Nc6 *

[Event "0x845a414b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C67"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence, open variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6 6.Bxc6 dxc6 7.dxe5 Nf5 8.
Qxd8+ Kxd8 9.Nc3 Bd7 10.h3 Ne7 *

[Event "0x845a90ac"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 e6 8.Qd2 
exd5 9.Qe3+ Kf8 10.Qf4 Bf6 *

[Event "0x848c7915"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D22"]
[Opening "QGA"]
[Variation "Alekhine defence"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 Bg4 5.Bxc4 e6 6.Nbd2 *

[Event "0x848db6ad"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.c3 h6 7.a4 b4 8.cxb4 cxb4 
9.Nbd2 d5 10.a5 Be7 *

[Event "0x84b081f2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D45"]
[Opening "QGD semi-Slav"]
[Variation "Stoltz variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nc3 Nbd7 6.Qc2 Bd6 7.Bd3 O-O 8.O-O 
dxc4 9.Bxc4 Qe7 10.Ne4 *

[Event "0x84be4652"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E06"]
[Opening "Catalan"]
[Variation "closed, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Be7 5.Bg2 O-O 6.O-O dxc4 7.Qc2 a6 8.Qxc4 b5
9.Qc2 Bb7 10.Bg5 Nbd7 *

[Event "0x84d64d20"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.Nge2 Nc6 8.Qd2 a6 *

[Event "0x84f8a402"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "Charousek (Petrosian) variation"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qc2 c5
9.Rd1 *

[Event "0x850cab8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 c6 7.Qc2 O-O 8.Bd3 
Nbd7 9.Nge2 Re8 10.h3 Nf8 *

[Event "0x85103f3d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C78"]
[Opening "Ruy Lopez"]
[Variation "Archangelsk (counterthrust) variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Bb7 7.d3 Be7 8.Nc3 O-O
9.a4 b4 10.Ne2 d6 *

[Event "0x8521fedc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A06"]
[Opening "Santasiere's folly"]

1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.a3 c5 5.bxc5 Bxc5 6.e3 O-O *

[Event "0x85297296"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C07"]
[Opening "French"]
[Variation "Tarrasch, open variation"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 Nc6 5.Bb5 dxe4 6.Nxe4 Bd7 *

[Event "0x8534b87"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B09"]
[Opening "Pirc"]
[Variation "Austrian attack, 6.Bd3"]

1.d4 g6 2.e4 Bg7 3.Nc3 d6 4.f4 Nf6 5.Nf3 O-O 6.Bd3 Nc6 7.O-O e5 8.fxe5 
dxe5 9.d5 Nb4 10.Bc4 Ne8 *

[Event "0x8539bd39"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D97"]
[Opening "Gruenfeld"]
[Variation "Russian, Alekhine (Hungarian) variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 a6 8.e5 b5 
9.Qb3 Nfd7 10.h4 Nb6 *

[Event "0x85486e56"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Qxc4 b5 8.Qc6 
Rb8 9.Bf4 Nd5 10.Bg5 Be7 *

[Event "0x8587421c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C71"]
[Opening "Ruy Lopez"]
[Variation "modern Steinitz defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.d4 b5 6.Bb3 Nxd4 7.Nxd4 exd4 8.Bd5 
Rb8 9.Qxd4 c5 10.Qd3 Ne7 *

[Event "0x85909fac"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C42"]
[Opening "Petrov"]
[Variation "Nimzovich attack"]

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.Nc3 Nxc3 6.dxc3 Be7 7.Qd4 O-O 8.
Be3 Nc6 9.Qf4 Qd7 10.h3 Qf5 *

[Event "0x85adb5b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.Nbd2 Nbd7 8.Qc2 
Re8 9.e4 dxe4 10.Nxe4 Nxe4 *

[Event "0x85cb5959"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 c6 7.e3 Be6 8.Ng5 Bg4 
9.Qb3 Qb6 10.h3 Bd7 *

[Event "0x85dc253f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 dxc4 7.e4 c5 8.dxc5 
Nbd7 9.e5 Nh5 10.Be3 Nxe5 *

[Event "0x85e87ffd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 c5 7.d5 a6 8.a4 h6 9.Be3
e6 10.dxe6 *

[Event "0x862da20f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B66"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.Rd1 
Bd7 9.Be2 Rc8 10.O-O Be7 *

[Event "0x86780037"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A11"]
[Opening "English"]
[Variation "Caro-Kann defensive system"]

1.c4 c6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Bg4 5.cxd5 cxd5 6.Ne5 Bc8 7.O-O e6 8.Nc3 
Be7 9.d4 O-O 10.Bf4 Nbd7 11.Qb3 Qb6 12.Qxb6 axb6 13.Nxd7 Bxd7 *

[Event "0x867ccaf1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B22"]
[Opening "Sicilian"]
[Variation "Alapin's variation (2.c3)"]

1.e4 c5 2.c3 b6 3.d4 Bb7 4.Bd3 Nf6 5.Nd2 cxd4 6.cxd4 Nc6 7.Ne2 e5 8.d5 Nb4
9.Bb1 Bc5 10.O-O a5 *

[Event "0x8687a610"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A90"]
[Opening "Dutch defence"]

1.d4 f5 2.c4 e6 3.g3 Nf6 4.Bg2 c6 5.Nf3 d5 6.O-O Bd6 7.b3 Qe7 8.Ne5 O-O 9.
Qc2 Nbd7 10.Nd3 Ne4 *

[Event "0x86dcb28d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 a6 7.Qd2 c5 8.d5 Qa5 9.
a4 e6 10.Nd1 Qc7 *

[Event "0x86e57aa8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B96"]
[Opening "Sicilian"]
[Variation "Najdorf, 7.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qc7 8.Bxf6 
gxf6 9.f5 Nc6 10.fxe6 fxe6 *

[Event "0x8726e9bd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B32"]
[Opening "Sicilian"]
[Variation "Labourdonnais-Loewenthal variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 a6 6.Nd6+ Bxd6 7.Qxd6 Qf6 8.
Qd2 Nge7 9.Nc3 d6 10.Bd3 Be6 *

[Event "0x874cf60f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B92"]
[Opening "Sicilian"]
[Variation "Najdorf, Opovcensky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O 
O-O 9.f4 Qc7 10.Kh1 b5 *

[Event "0x875cd463"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.f4 e5 8.Nde2 
exf4 9.Nxf4 Be7 10.Qd2 O-O *

[Event "0x87692729"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nf3 Qc7 8.a4 Be7
9.a5 O-O 10.Be2 Qc6 *

[Event "0x878afdf2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A29"]
[Opening "English"]
[Variation "four knights, kingside fianchetto"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 Bb4 5.Bg2 O-O 6.O-O e4 7.Ng5 Bxc3 8.bxc3 
Re8 *

[Event "0x8794f98b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.Nf3 Qf5 7.Qxf5 exf5 8.a3
Bd6 9.Nb5 Be6 10.e3 Nc6 *

[Event "0x87afb75b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C02"]
[Opening "French"]
[Variation "advance, Paulsen attack"]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.Be2 cxd4 7.cxd4 Nh6 8.b3 Nf5 
9.Bb2 Bb4+ 10.Kf1 Be7 *

[Event "0x87cf2c9e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B97"]
[Opening "Sicilian"]
[Variation "Najdorf, 7...Qb6"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Nb3 
Nbd7 9.Qd2 Qc7 10.O-O-O b5 *

[Event "0x87dd2f58"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B92"]
[Opening "Sicilian"]
[Variation "Najdorf, Opovcensky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 Nbd7 7.Be3 b5 8.a4 b4
9.Nc6 Qc7 10.Nxb4 e6 *

[Event "0x8814f339"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.Nge2 Nc6 8.d5 Ne5 
9.Ng3 e6 10.Be2 exd5 *

[Event "0x8828be70"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Bb4+ 5.Bd2 Be7 6.Bg2 O-O 7.O-O c6 8.Qb3 b6 
9.Nc3 Nbd7 10.Rac1 *

[Event "0x8835c9ef"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C43"]
[Opening "Petrov"]
[Variation "modern attack, Symmetrical variation"]

1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 d5 5.Nxe5 Bd6 6.O-O O-O 7.Nc3 Nxc3 8.
bxc3 Nd7 9.Re1 Bxe5 10.dxe5 Nc5 *

[Event "0x889e3a5a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E54"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system with 7...dc"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4 
cxd4 9.exd4 a6 10.a3 Bxc3 *

[Event "0x88ab805d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "Charousek (Petrosian) variation"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qd2 
dxc4 9.Bxc4 c5 10.O-O cxd4 *

[Event "0x88b75a58"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C45"]
[Opening "Scotch game"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Nxc6 Qf6 6.Qd2 bxc6 7.Bd3 Ne7 8.
O-O O-O 9.Nc3 d6 10.e5 Qe6 *

[Event "0x88c0193a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Qxc4 b5 8.Qc6 
Rb8 9.Bf4 Nd5 10.Bg5 Qe7 *

[Event "0x88d45398"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C00"]
[Opening "French"]
[Variation "King's Indian attack"]

1.e4 e6 2.d3 d5 3.Nd2 Nf6 4.g3 dxe4 5.dxe4 Bc5 6.Bg2 Nc6 7.Ngf3 e5 8.O-O 
O-O 9.c3 a5 10.Qc2 b6 *

[Event "0x88d7b1bb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 c5 7.d5 e6 8.Qd2 exd5 9.
cxd5 a6 10.Nge2 Nbd7 *

[Event "0x88de27f1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 Nc6 7.g5 Nd7 8.Be3 Be7
9.Rg1 O-O 10.Qh5 g6 *

[Event "0x88fc2dc3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Riumin variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.Nc3 O-O 8.O-O d5
9.Ne5 c6 10.Bf4 Nfd7 *

[Event "0x88fe2270"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.O-O d6 6.Nxd4 Qc7 7.Nd2 d5 8.c4 e5 
9.Nc2 dxc4 10.Na3 Bxa3 11.Qa4+ *

[Event "0x89065dd9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.Bd2 dxc4
9.Bxc4 c5 10.dxc5 Bxc5 *

[Event "0x891d3f46"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 d6 7.Bg2 Bd7 8.O-O Nf6
9.Nxc6 Bxc6 10.Re1 Be7 *

[Event "0x8930960"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 d5 6.O-O Qb6 *

[Event "0x893e08aa"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C60"]
[Opening "Ruy Lopez"]
[Variation "fianchetto (Smyslov/Barnes) defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 a6 6.Ba4 d6 7.d4 Bd7 8.dxe5 Nxe5
9.Nxe5 dxe5 10.Bg5 Nf6 *

[Event "0x893f22ff"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B59"]
[Opening "Sicilian"]
[Variation "Boleslavsky variation, 7.Nb3"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 e5 7.Nb3 Be7 8.O-O 
O-O 9.Be3 a5 10.a4 Be6 *

[Event "0x89514793"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni"]
[Variation "Nimzovich (knight's tour) variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.Nd2 Bg7 8.Nc4 O-O
9.Bg5 Qe7 10.Qd2 Nbd7 *

[Event "0x8956c003"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.Bf4 Nxc3 7.bxc3 c5 8.e3 
cxd4 *

[Event "0x895833f6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E54"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system with 7...dc"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 d5 7.O-O dxc4 8.Bxc4 
cxd4 9.exd4 a6 10.Ne5 b5 *

[Event "0x8963b243"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E74"]
[Opening "King's Indian"]
[Variation "Averbakh, 6...c5"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.dxc5 Qa5 8.Bd2 
Qxc5 9.Nf3 Bg4 10.O-O *

[Event "0x897d0deb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A30"]
[Opening "English"]
[Variation "symmetrical, hedgehog, flexible formation"]

1.d4 Nf6 2.Nf3 e6 3.g3 b6 4.Bg2 Bb7 5.O-O c5 6.c4 cxd4 7.Qxd4 d6 8.Nc3 Be7
9.Rd1 a6 10.b3 Nbd7 *

[Event "0x8985674f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Be7 7.Bd3 O-O 8.O-O *

[Event "0x89a91cfc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A45"]
[Opening "Trompovsky attack (Ruth, Opovcensky opening)"]

1.d4 Nf6 2.Bg5 e6 3.e4 h6 4.Bxf6 Qxf6 5.Nf3 d6 *

[Event "0x89c2d1eb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A04"]
[Opening "Reti"]
[Variation "Pirc-Lisitsin gambit"]

1.Nf3 f5 2.e4 fxe4 3.Ng5 e5 4.d3 e3 5.Bxe3 Nc6 6.g3 Nf6 7.Bg2 d5 8.c4 *

[Event "0x89e7c446"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B98"]
[Opening "Sicilian"]
[Variation "Najdorf, Goteborg (Argentine) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 h6 
9.Bh4 g5 10.fxg5 Nfd7 *

[Event "0x89ef588d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B40"]
[Opening "Sicilian"]
[Variation "Anderssen variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Nxc6 bxc6 7.e5 Nd5 8.Ne4
Qc7 9.f4 Qa5+ 10.c3 Ba6 *

[Event "0x89f34d1a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A88"]
[Opening "Dutch"]
[Variation "Leningrad, main variation with c6"]

1.d4 f5 2.g3 Nf6 3.Bg2 c6 4.Nf3 d6 5.O-O g6 6.c4 Bg7 7.Nc3 O-O 8.d5 e5 9.
dxe6 Bxe6 10.b3 Ne4 *

[Event "0x89fb7cd1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C63"]
[Opening "Ruy Lopez"]
[Variation "Schliemann defence, Berger variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 Nf6 5.exf5 e4 6.Nh4 d5 7.d3 Be7 8.dxe4 
dxe4 9.Qxd8+ Bxd8 10.Bg5 O-O *

[Event "0x8a04ab74"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.h4 e5 8.d5 c6 9.
h5 cxd5 10.cxd5 Qb6 *

[Event "0x8a29b064"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.b3 Ne4 8.Bb2 a5 9.
Nbd2 Bf5 10.Nh4 Nxd2 *

[Event "0x8a3f5b65"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A52"]
[Opening "Budapest"]
[Variation "Adler variation"]

1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.Nf3 Bc5 5.e3 Nc6 6.a3 a5 7.b3 O-O 8.Nc3 Re8 
9.Be2 Ncxe5 10.Nxe5 Nxe5 11.O-O d6 *

[Event "0x8a87b75c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni"]
[Variation "Nimzovich (knight's tour) variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 c5 4.d5 exd5 5.cxd5 d6 6.Nf3 g6 7.Nd2 Nbd7 8.Nc4 
Nb6 9.e4 Bg7 10.Ne3 O-O *

[Event "0x8a9ac04f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 c5 7.Qe2 a6 8.dxc5 
Bxc5 9.O-O Qc7 10.Nbd2 Nbd7 *

[Event "0x8a9bc7d4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Bg2 c5 6.O-O Nc6 7.Qa4 cxd4 8.Nxd4 
Qxd4 9.Bxc6+ Bd7 10.Bxd7+ Qxd7 *

[Event "0x8aa60934"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.Nf3 Qf5 7.Qd1 c5 8.e3 
cxd4 9.exd4 Ne4 10.Bd2 Nc6 *

[Event "0x8ac5414b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.Be2 a6 8.f4 Be7
9.Qd2 O-O 10.O-O-O Qc7 *

[Event "0x8acbafa6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bd3 Nc6 7.Ne2 Bg4 8.Be3 
Bxe2 9.Bxe2 Qd7 10.Nc3 *

[Event "0x8aea5f8c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C02"]
[Opening "French"]
[Variation "advance, Paulsen attack"]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.a3 c4 7.g3 Na5 8.Nbd2 Bd7 *

[Event "0x8af5d41c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A28"]
[Opening "English"]
[Variation "four knights, Stean variation"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e3 Bb4 5.Qc2 O-O 6.Nd5 Re8 7.Qf5 d6 8.Nxf6+ 
gxf6 9.Qh5 d5 10.a3 Bf8 11.d4 Be6 12.Bd3 e4 13.Bc2 Ne7 *

[Event "0x8afd7d2b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 d5 6.O-O c6 7.cxd5 cxd5 8.Ne5 
Nc6 9.Nc3 Nxe5 10.dxe5 Ng4 *

[Event "0x8b5cd079"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B97"]
[Opening "Sicilian"]
[Variation "Najdorf, Poisoned pawn variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 
Qxb2 9.Rb1 Qa3 10.Be2 Nbd7 *

[Event "0x8b5d5b68"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Yates variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 a5 7.O-O O-O 8.Bg5 Be7
9.Bxf6 *

[Event "0x8b5d890d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B72"]
[Opening "Sicilian"]
[Variation "dragon, 6.Be3"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.h3 O-O 8.Qd2 
Nc6 9.O-O-O Bd7 10.g4 Rc8 *

[Event "0x8b5ff528"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B01"]
[Opening "Scandinavian (centre counter) defence"]

1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 Nf6 5.Nf3 Nc6 6.h3 Ne4 7.Bd2 Nxd2 8.
Nxd2 e6 9.Bb5 Bb4 10.O-O Bxc3 *

[Event "0x8b64fd85"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 Nf6 2.Nf3 d5 3.c4 dxc4 4.e3 e6 5.Bxc4 c5 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
b5 9.Bd3 Nc6 10.Nbd2 Bb7 *

[Event "0x8b753132"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D98"]
[Opening "Gruenfeld"]
[Variation "Russian, Smyslov variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 
Nfd7 9.O-O-O Nb6 10.Qc5 N8d7 *

[Event "0x8b7a9235"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C19"]
[Opening "French"]
[Variation "Winawer, advance, Smyslov variation"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.a3 Bxc3+ 6.bxc3 c5 7.a4 Qa5 8.Bd2 
Nbc6 9.Nf3 Bd7 10.g3 O-O-O *

[Event "0x8b7e6c23"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 h6 7.Be3 Nbd7 8.Qd2 c5 
9.d5 Qa5 *

[Event "0x8b89795"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A43"]
[Opening "Old Benoni defence"]

1.d4 c5 2.dxc5 e6 3.Nc3 Bxc5 4.Ne4 Nf6 5.Nxc5 Qa5+ 6.Qd2 Qxc5 7.Qg5 Qxg5 
8.Bxg5 b6 9.c4 Bb7 10.f3 h6 *

[Event "0x8bd5c933"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Qxc4 b5 8.Qc2 
Bb7 9.O-O c5 10.a4 b4 *

[Event "0x8be5b601"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.a3 Be7 
9.cxd5 exd5 10.Ne5 c5 *

[Event "0x8c311979"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.Qe2 cxd4 7.exd4 Nc6 8.O-O 
Be7 9.Be3 O-O 10.Nc3 Na5 *

[Event "0x8c642a30"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 c5 6.O-O Nc6 7.Ne5 Bd7 8.Na3 
cxd4 9.Naxc4 Be7 10.Qb3 Qc8 *

[Event "0x8cd5a159"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A42"]
[Opening "Modern defence"]
[Variation "Averbakh system"]

1.d4 d6 2.c4 g6 3.Nc3 Bg7 4.e4 Nd7 5.Nf3 e5 6.Be2 Ne7 7.Be3 O-O 8.Qd2 f5 *

[Event "0x8cf4f195"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 Nbd7 7.Bd3 Nf8 8.Nf3 
*

[Event "0x8d00e990"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D22"]
[Opening "QGA"]
[Variation "Alekhine defence"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 Nf6 5.Bxc4 b5 6.Bd3 Bb7 7.a4 b4 8.Nbd2 e6 
9.e4 c5 10.e5 Nd5 *

[Event "0x8d1dbf3b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A34"]
[Opening "English"]
[Variation "symmetrical, three knights system"]

1.c4 c5 2.Nc3 Nf6 3.Nf3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.dxc3 Qxd1+ 7.Kxd1 Nc6 *

[Event "0x8d2a3ccb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.f4 e5 8.Nf3 Be7
9.Qd2 Ng4 10.f5 g6 *

[Event "0x8d787f0f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B60"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Qb6 7.Nb3 e6 8.Bd3 
Be7 9.O-O a6 10.Kh1 O-O *

[Event "0x8d95ec06"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 Nbd7 7.Bd3 O-O 8.Nge2
c6 9.Ng3 h6 10.h4 Nb6 *

[Event "0x8da6b7ba"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B94"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.Bg5"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 Nc6 7.Qd2 Bd7 8.Bxf6 
gxf6 9.Nf5 Qa5 10.Be2 Rc8 *

[Event "0x8db6f07"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A92"]
[Opening "Dutch"]
[Variation "stonewall variation"]

1.d4 e6 2.Nf3 f5 3.g3 Nf6 4.Bg2 Be7 5.O-O O-O 6.c4 d5 7.Nbd2 c6 8.Ne5 Nbd7
9.Nd3 Bd6 10.c5 Bc7 *

[Event "0x8dbaae71"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E58"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with 8...Bxc3"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O Nc6 8.a3 Bxc3 
9.bxc3 Qc7 10.Qc2 dxc4 *

[Event "0x8ddd0eb8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D86"]
[Opening "Gruenfeld"]
[Variation "exchange, classical variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Ne2 
Nc6 9.Be3 O-O 10.O-O cxd4 *

[Event "0x8dedf113"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 e6 5.Bxc4 c5 6.O-O Nf6 7.Bd3 Nbd7 8.Re1 
Be7 9.e4 cxd4 10.e5 Nd5 *

[Event "0x8dfd4edf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C68"]
[Opening "Ruy Lopez"]
[Variation "exchange, Keres variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.Nc3 Bd6 6.d4 exd4 7.Qxd4 f6 8.Be3
Ne7 9.O-O-O Ng6 10.h4 Qe7 *

[Event "0x8e11a2d7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 c6 8.dxc6
Nxc6 9.e3 e5 10.d5 Qxg5 *

[Event "0x8e2946b8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
Qa5 9.Rb1 Nd7 10.Bd3 O-O *

[Event "0x8e786fb4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D28"]
[Opening "QGA"]
[Variation "classical, 7...b5"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 e6 5.Bxc4 c5 6.O-O Nf6 7.Qe2 b5 8.Bd3 cxd4
9.exd4 Nc6 10.a4 bxa4 *

[Event "0x8ed0fa2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C54"]
[Opening "Giuoco Piano"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4 Bb4+ 7.Bd2 Nxe4 8.
Bxb4 Nxb4 9.Bxf7+ Kxf7 10.Qb3+ Kf8 *

[Event "0x8edb1da0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D45"]
[Opening "QGD semi-Slav"]
[Variation "Stoltz variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nc3 Nbd7 6.Qc2 Bd6 7.Bd3 O-O 8.O-O 
dxc4 9.Bxc4 Qe7 10.a3 e5 *

[Event "0x8f1593fd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B65"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O
O-O 9.f4 Nxd4 10.Qxd4 a6 *

[Event "0x8f23681c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B06"]
[Opening "Robatsch defence"]

1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.Nf3 d5 5.h3 Nf6 6.e5 Ne4 7.Nxe4 dxe4 8.Ng5 c5 
9.d5 Bxe5 10.Nxe4 Nd7 *

[Event "0x8f742a67"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A05"]
[Opening "Reti"]
[Variation "King's Indian attack, Spassky's variation"]

1.Nf3 Nf6 2.g3 b5 3.Bg2 Bb7 4.O-O e6 5.d3 d6 6.e4 Be7 7.Bd2 O-O *

[Event "0x8f7c1359"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Bb4+ 5.Nbd2 dxc4 6.Bg2 Nc6 7.Qc2 Bxd2+ 8.
Bxd2 Nxd4 9.Qxc4 Nxf3+ 10.Bxf3 O-O *

[Event "0x8f94fb79"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B56"]
[Opening "Sicilian"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g3 g6 7.Bg2 Bd7 8.O-O 
Bg7 9.Nde2 O-O 10.h3 Na5 *

[Event "0x8fb2c77c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, Benko variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Qb6 7.Nb3 e6 8.Qe2 
a6 9.Be3 Qc7 10.f4 b5 *

[Event "0x8fbb7b14"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A88"]
[Opening "Dutch"]
[Variation "Leningrad, main variation with c6"]

1.d4 f5 2.Nf3 Nf6 3.g3 g6 4.Bg2 Bg7 5.O-O O-O 6.c4 d6 7.Nc3 c6 8.Re1 Nh5 
9.h3 e5 10.e4 exd4 *

[Event "0x8fbf1dd9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Bd2 Bxd2+ 6.Nbxd2 exd4 7.Bxc4 Nc6 
8.O-O Nh6 9.Nb3 O-O 10.Nbxd4 Nxd4 *

[Event "0x8fc84136"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "semi-Slav, Noteboom variation"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Nc3 dxc4 5.a4 Bb4 6.g3 a5 7.Ne5 Nf6 8.Bg2 Nd5 
9.Bd2 Nb6 10.e3 N8d7 *

[Event "0x8fe3a67d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 a6 7.O-O c5 8.Bd3 Nbd7
9.Re1 b6 *

[Event "0x8fe46765"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A45"]
[Opening "Trompovsky attack (Ruth, Opovcensky opening)"]

1.d4 Nf6 2.Bg5 c5 3.d5 Qb6 4.Nc3 Qxb2 5.Bd2 Qb6 6.e4 e5 7.f4 d6 8.fxe5 
dxe5 *

[Event "0x8feaa5e8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.Nc3 d5 7.Qb3 Qb6 8.O-O Bf5 
9.h3 Rd8 10.g4 Be6 *

[Event "0x8ff26979"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A47"]
[Opening "Queen's Indian defence"]

1.d4 Nf6 2.Nf3 b6 3.Bg5 Ne4 4.Bh4 Bb7 5.Nbd2 g6 *

[Event "0x90022ffd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Nge7 7.Be3 b5 8.Nb3 d6
9.f4 Bd7 10.Bg2 Nc8 *

[Event "0x90066afc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C69"]
[Opening "Ruy Lopez"]
[Variation "exchange, Bronstein variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Qd6 6.Na3 Be6 7.Qe2 f6 8.Rd1 
O-O-O 9.d4 Bg4 10.Be3 Qe6 *

[Event "0x900cf29b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E35"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation, 5.cd ed"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Bg5 h6 7.Bh4 c5 8.dxc5 
Nc6 9.e3 g5 10.Bg3 Ne4 *

[Event "0x9012e20c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.dxc5 dxc5 8.Qxd8 
Rxd8 9.Bxc5 Nc6 10.Nd5 Nd7 *

[Event "0x901b59e9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f3 Nbd7 7.Be3 d5 8.Nxd5 
Nxd5 9.exd5 Qa5+ 10.Qd2 Qxd5 *

[Event "0x901fca92"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 c5 5.Nf3 a6 6.O-O Nf6 7.Bd3 cxd4 8.exd4 
Be7 9.Ne5 O-O 10.Be3 Bd7 *

[Event "0x9028b4c0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.O-O Nc6 6.Nxd4 Bc5 7.Nb3 Be7 8.c4 *

[Event "0x902cee0d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Be2 Be7 8.Be3 Qc7
9.O-O O-O 10.g4 Nfd7 *

[Event "0x9055b3d6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C07"]
[Opening "French"]
[Variation "Tarrasch, open variation"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 Qxd5 5.Ngf3 cxd4 6.Bc4 Qd6 7.O-O Nf6 8.Nb3
Nc6 9.Nbxd4 Nxd4 10.Qxd4 Qxd4 11.Nxd4 Bd7 *

[Event "0x905d131a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B32"]
[Opening "Sicilian"]
[Variation "Labourdonnais-Loewenthal (Kalashnikov) variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 d6 6.N1c3 a6 7.Na3 b5 8.Nd5 
Nge7 9.c4 Nd4 10.Bg5 h6 *

[Event "0x909a892"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 dxc4 7.e3 c5 8.Bxc4 
Qa5 9.O-O cxd4 10.Nxd4 e5 *

[Event "0x90ef9dba"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 d5 6.O-O c6 7.cxd5 cxd5 8.Ne5 e6
9.Nc3 Nfd7 10.Nf3 Nb6 *

[Event "0x9101aa6a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E54"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system with 7...dc"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4 
cxd4 9.exd4 b6 10.Bg5 Bb7 *

[Event "0x9117230c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B92"]
[Opening "Sicilian"]
[Variation "Najdorf, Opovcensky variation"]

1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.Nc3 cxd4 5.Nxd4 a6 6.Be2 e5 7.Nb3 Be7 8.O-O 
O-O 9.Qd3 b5 10.a4 b4 *

[Event "0x914985d7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D11"]
[Opening "QGD Slav"]
[Variation "4.e3"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 Nbd7 6.O-O dxc4 7.Bxc4 b5 8.Bd3 a6
9.e4 c5 10.a4 *

[Event "0x9151acf8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B30"]
[Opening "Sicilian defence"]

1.e4 c5 2.Nf3 Nc6 3.d3 g6 4.g3 Bg7 5.Bg2 e5 6.O-O Nge7 7.c3 O-O 8.Be3 d6 
9.Na3 h6 10.Qd2 Kh7 *

[Event "0x91aaad64"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Qf3 Qb6 8.Nb3 Qc7
9.g4 b5 10.Bd3 Nc6 *

[Event "0x91e0329d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Qc7 7.Bg2 Nf6 8.O-O 
Be7 9.Re1 Nxd4 10.Qxd4 Bc5 *

[Event "0x91e03f33"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E38"]
[Opening "Nimzo-Indian"]
[Variation "classical, 4...c5"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 Na6 6.a3 Bxc3+ 7.Qxc3 Nxc5 8.f3
d6 9.b4 Na4 10.Qb3 Bd7 *

[Event "0x91e22fbe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.Nc3 d5 7.Qb3 dxc4 8.Qxc4 
Nbd7 9.O-O Nb6 10.Qd3 Nfd5 *

[Event "0x91e674c6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B88"]
[Opening "Sicilian"]
[Variation "Sozin, Leonhardt variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3 Be7 8.O-O 
Nxd4 9.Qxd4 O-O 10.f4 b6 *

[Event "0x9217213a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B30"]
[Opening "Sicilian defence"]

1.e4 c5 2.Nf3 Nc6 3.c3 Nf6 4.e5 Nd5 5.d4 cxd4 6.cxd4 d6 7.Bc4 Nb6 8.Bb5 d5
9.Nc3 Bg4 10.h3 Bxf3 *

[Event "0x923331ba"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Nge7 7.O-O Nxd4 8.
Qxd4 Nc6 9.Qd3 Qc7 10.Bg5 *

[Event "0x924b2cf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A11"]
[Opening "English"]
[Variation "Caro-Kann defensive system"]

1.c4 c6 2.Nf3 Nf6 3.g3 d5 4.Bg2 Bf5 5.cxd5 cxd5 6.Qb3 Qb6 7.Qxb6 axb6 8.
Nc3 Nc6 9.d3 e6 10.Nb5 Bb4+ 11.Bd2 Ke7 12.Nfd4 Bxd2+ 13.Kxd2 Bg6 *

[Event "0x927604d7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B04"]
[Opening "Alekhine's defence"]
[Variation "modern, Keres variation"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 g6 5.Bc4 Nb6 6.Bb3 Bg7 7.a4 a5 8.Qe2 Nc6 
9.O-O dxe5 10.dxe5 Nd4 *

[Event "0x92b140a7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C49"]
[Opening "Four knights"]
[Variation "symmetrical, Maroczy system"]

1.e4 e5 2.Nf3 Nf6 3.Nc3 Nc6 4.Bb5 Bb4 5.O-O O-O 6.d3 d6 7.Ne2 Ne7 8.Ng3 c6
9.Ba4 Ng6 10.c3 Ba5 *

[Event "0x92e749bb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O 
h5 9.h3 b5 10.Nxc6 Qxc6 *

[Event "0x92faf113"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E18"]
[Opening "Queen's Indian"]
[Variation "old main line, 7.Nc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Nxe4 
Bxe4 9.Ne1 d5 10.cxd5 Bxg2 *

[Event "0x93042297"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B22"]
[Opening "Sicilian"]
[Variation "Alapin's variation (2.c3)"]

1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 Bg4 6.Be2 e6 7.h3 Bh5 8.Na3 Nc6
9.Be3 cxd4 10.Nb5 Rc8 *

[Event "0x9304e116"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B14"]
[Opening "Caro-Kann"]
[Variation "Panov-Botvinnik attack, 5...e6"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6 6.Nf3 Be7 7.c5 b6 8.cxb6 
Qxb6 9.Bb5+ Bd7 10.Bxd7+ Nbxd7 *

[Event "0x930ed9e8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C82"]
[Opening "Ruy Lopez"]
[Variation "open, Motzko attack"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.c3 Bc5 10.Qd3 O-O *

[Event "0x9328208e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E75"]
[Opening "King's Indian"]
[Variation "Averbakh, main line"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 e6 8.Qd2 exd5 
9.exd5 Re8 10.Nf3 Qb6 *

[Event "0x933361f8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C78"]
[Opening "Ruy Lopez"]
[Variation "Archangelsk (counterthrust) variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O b5 6.Bb3 Bb7 7.Re1 Bc5 8.c3 d6 
9.d4 Bb6 10.Qd3 h6 *

[Event "0x9338f59a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 Nc6 5.c4 cxd4 6.Nxd4 Qb6 7.Nb5 d5 8.O-O 
Bd7 9.Be3 d4 10.Bxd4 Nxd4 *

[Event "0x93695ac8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.h4 Nc6 8.Rg1 h5 
9.gxh5 Nxh5 10.Bg5 Nf6 *

[Event "0x93778163"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "Linares variation"]

1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 Nf6 5.Nc3 b5 6.Bf4 Qa5 7.Bd2 *

[Event "0x939c3a90"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D53"]
[Opening "QGD"]
[Variation "4.Bg5 Be7"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 h6 6.Bh4 b6 7.cxd5 exd5 *

[Event "0x93a13fee"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Bxd2+ 7.Qxd2 d6 8.O-O 
O-O 9.Nc3 Nbd7 10.Rfd1 Ne4 *

[Event "0x93f96301"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be3 Qc7 7.f4 b5 8.Be2 *

[Event "0x941706b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 O-O 7.a3 Be7 8.Nf4 d6
9.Be2 e5 10.dxe5 dxe5 *

[Event "0x941fa615"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian"]
[Variation "dragon variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.g3 Nc6 7.Nde2 b6 8.Bg2 
Ba6 9.O-O Rc8 10.Re1 Bg7 *

[Event "0x9423f4ca"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 e6 8.Nf3 
exd5 9.e3 O-O 10.b4 c6 *

[Event "0x9435e88b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.Bg5 Nbd7 6.Nbd2 *

[Event "0x943d172a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
Qc7 9.e4 Ng4 10.Bg5 Nc6 *

[Event "0x94554dae"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.f4 
exf4 9.Bxf4 Nc6 10.Qe2 g6 *

[Event "0x948d8b89"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B14"]
[Opening "Caro-Kann"]
[Variation "Panov-Botvinnik attack, 5...e6"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6 6.Nf3 Bb4 7.cxd5 Nxd5 8.Qc2 
Nd7 9.a3 Ba5 10.Bd3 N7f6 *

[Event "0x949537dd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E06"]
[Opening "Catalan"]
[Variation "closed, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Be7 5.Bg2 O-O 6.O-O dxc4 7.Qc2 a6 8.Qxc4 b5
9.Qc2 Bb7 10.Bd2 Nc6 *

[Event "0x949d9a62"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.e3 Bd6 5.Nc3 Nf6 6.Be2 *

[Event "0x94a5a44d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, Benko variation"]

1.e4 c5 2.Nf3 Nc6 3.Nc3 d6 4.d4 cxd4 5.Nxd4 Nf6 6.Bc4 Qb6 7.Nxc6 bxc6 8.
O-O e6 9.Qe2 Be7 10.e5 dxe5 *

[Event "0x94d4e065"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 Nc6 7.g5 Nd7 8.Be3 Be7
9.h4 O-O 10.Qd2 Nde5 *

[Event "0x94e2d797"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B01"]
[Opening "Scandinavian (centre counter) defence"]

1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 Nf6 5.Nf3 c6 6.Bc4 Bf5 7.Ne5 e6 8.g4 
Bg6 9.h4 Nbd7 10.Nxd7 Nxd7 *

[Event "0x953392b6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
O-O 9.Rc1 Nd7 10.Bd3 Qa5 *

[Event "0x953b1dc4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B30"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (without ...d6)"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 d6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Bf1 Bg4 8.d3 e6 
9.Nbd2 d5 10.exd5 Qxd5 *

[Event "0x95401c29"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be3 Qc7 7.Bd3 b5 8.O-O 
Bb7 9.Qe2 Nf6 10.Kh1 Bb4 *

[Event "0x95d3efc5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C16"]
[Opening "French"]
[Variation "Winawer, Petrosian variation"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Qd7 5.a3 Bxc3+ 6.bxc3 b6 7.Qg4 f5 8.Qg3 Bb7
9.Nh3 Nc6 10.Nf4 O-O-O *

[Event "0x95f821a2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B88"]
[Opening "Sicilian"]
[Variation "Sozin, Leonhardt variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3 Be7 8.Be3 
O-O 9.O-O Na5 10.f4 Nxb3 *

[Event "0x9600623a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B96"]
[Opening "Sicilian"]
[Variation "Najdorf, 7.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Nc6 8.Nxc6 
bxc6 9.e5 h6 10.Bxf6 gxf6 *

[Event "0x961ebbb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D11"]
[Opening "QGD Slav"]
[Variation "4.e3"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 Nbd7 6.O-O Bd6 7.Nc3 O-O 8.e4 dxc4
9.Bxc4 b5 *

[Event "0x9631b927"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 Nf6 2.Nf3 d5 3.c4 dxc4 4.e3 e6 5.Bxc4 c5 6.Qe2 cxd4 7.exd4 Nc6 8.O-O 
Nxd4 9.Nxd4 Qxd4 10.Rd1 Qb6 11.Bb5+ *

[Event "0x96353970"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A28"]
[Opening "English"]
[Variation "four knights, Romanishin variation"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e3 Bb4 5.Qc2 Bxc3 6.Qxc3 Qe7 7.a3 a5 8.b4 d6
*

[Event "0x965af469"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 a6 7.Qd2 Nc6 8.Nge2 Re8 
9.d5 Ne5 10.Ng3 c6 *

[Event "0x96664f71"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B56"]
[Opening "Sicilian"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f3 e5 7.Nb3 Be7 8.Be3 
Be6 9.Qe2 O-O 10.O-O-O Na5 *

[Event "0x9677e39c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.cxd5 exd5 5.Nc3 Nf6 6.Bg5 Be7 7.Qc2 g6 8.e3 Bf5
9.Bd3 Bxd3 10.Qxd3 Nbd7 *

[Event "0x969f0112"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E55"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system, Bronstein variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4 
Nbd7 9.Qe2 b6 10.d5 Bxc3 *

[Event "0x96a69b26"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D45"]
[Opening "QGD semi-Slav"]
[Variation "Stoltz variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nc3 Nbd7 6.Qc2 Bd6 7.Bd3 O-O 8.O-O 
dxc4 9.Bxc4 a6 10.Rd1 c5 *

[Event "0x96b5074f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, Benko variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Qb6 7.Nxc6 bxc6 8.
O-O e6 9.Bd3 Be7 10.Na4 Qc7 *

[Event "0x96efa3bc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E74"]
[Opening "King's Indian"]
[Variation "Averbakh, 6...c5"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 h6 8.Bf4 e6 9.
dxe6 Bxe6 10.Bxd6 Re8 *

[Event "0x97113596"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 Nc6 5.c4 cxd4 6.Nxd4 Bc5 7.Nb3 Bb4+ *

[Event "0x9727ebf4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B52"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky attack, 3...Bd7"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Nxd7 5.O-O Ngf6 6.Qe2 e6 7.b3 Be7 8.
Bb2 O-O 9.d4 cxd4 10.Nxd4 a6 *

[Event "0x972f1f2c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 a6 7.Nge2 c5 8.d5 b5 9.
cxb5 Qa5 10.Ng3 axb5 *

[Event "0x973f10e1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A47"]
[Opening "Queen's Indian"]
[Variation "Marienbad system"]

1.d4 Nf6 2.Nf3 b6 3.g3 Bb7 4.Bg2 c5 5.c3 e6 6.O-O Be7 7.Nbd2 O-O *

[Event "0x974102ea"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D97"]
[Opening "Gruenfeld"]
[Variation "Russian, Alekhine (Hungarian) variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 a6 8.Be2 b5
9.Qb3 Bb7 10.e5 Nd5 *

[Event "0x97518564"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Nge7 7.Bf4 Ng6 8.Bg3 
Be7 9.Qd2 *

[Event "0x977194b4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Nc3 exd4 6.Nxd4 Ne7 7.Bxc4 O-O 8.
O-O Nbc6 9.Be3 Nxd4 10.Bxd4 Nc6 *

[Event "0x9775e50d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B30"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (without ...d6)"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 e6 4.O-O Nge7 5.Re1 a6 6.Bf1 d5 7.exd5 Nxd5 8.d4 
Nf6 9.Be3 cxd4 10.Nxd4 Nxd4 *

[Event "0x97ab5ec5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.a3 Bxc3+ 8.bxc3 
Ba6 9.Ne5 Nfd7 10.Nxd7 Qxd7 *

[Event "0x97b33133"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O 
Ne5 9.h3 Bc5 10.Kh1 d6 *

[Event "0x97ff1030"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 e6 8.Qd2 
exd5 9.Qe3+ Kf8 10.g3 *

[Event "0x98185dd6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D98"]
[Opening "Gruenfeld"]
[Variation "Russian, Smyslov variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 
Nfd7 9.O-O-O e5 *

[Event "0x981bad3f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 b5 8.Nxc6 
Qxc6 9.O-O Bb7 10.Re1 Nf6 *

[Event "0x981edd9b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
b5 9.Bd3 Nc6 10.Rd1 Qc7 *

[Event "0x98206166"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D11"]
[Opening "QGD Slav"]
[Variation "4.e3"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 Nbd7 6.O-O Bd6 7.Nc3 O-O 8.e4 dxc4
9.Bxc4 e5 10.Bg5 h6 *

[Event "0x98320329"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Bg2 a6 6.O-O Nc6 7.Nc3 Rb8 8.e4 Be7 
9.d5 exd5 10.exd5 Nb4 *

[Event "0x986294ab"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.Nge2 Nc6 8.d5 Ne5 
9.Ng3 h5 10.Be2 h4 *

[Event "0x98665df5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Nc6 7.Nf3 a6 8.Bd3 b5 
9.O-O b4 10.Na4 Be7 *

[Event "0x986a29b6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E62"]
[Opening "King's Indian"]
[Variation "fianchetto, Larsen system"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.Nc3 d6 7.O-O Bf5 8.Ne1 e5 
9.d5 cxd5 10.Nxd5 Nxd5 *

[Event "0x9898d2e1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.O-O c6 6.b3 O-O 7.c4 Ne4 8.Bb2 a5 9.
Nfd2 *

[Event "0x98b8ac43"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A88"]
[Opening "Dutch"]
[Variation "Leningrad, main variation with c6"]

1.Nf3 f5 2.g3 Nf6 3.Bg2 g6 4.O-O Bg7 5.d4 O-O 6.c4 c6 7.Nc3 d6 8.Qc2 a5 9.
b3 Na6 10.Bb2 Qc7 *

[Event "0x98c986ed"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B18"]
[Opening "Caro-Kann"]
[Variation "classical variation"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.Nf3 Nd7 7.Bd3 e6 8.O-O 
Ngf6 9.Re1 Be7 10.c4 Qc7 *

[Event "0x98cbbd08"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 e6 5.Nc3 exd5 6.Nxd5 Ne7 7.Bxc4 Nxd5 8.Bxd5
Be7 9.Nf3 O-O 10.O-O Qb6 *

[Event "0x98cf02fb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Qd3 a6 5.e4 Bb7 6.Nbd2 c5 7.Bg2 Nc6 8.c3 cxd4 
9.Nxd4 Qc7 10.O-O Nxd4 *

[Event "0x98d6611a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A55"]
[Opening "Old Indian"]
[Variation "main line"]

1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Nf3 Nbd7 5.e4 Be7 6.Be2 O-O 7.O-O Re8 8.Re1 c6
9.Bf1 Bf8 *

[Event "0x9909e8c3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 a5 7.a4 Na6 8.Bb2 c6 9.
Nbd2 Bd7 10.e4 Rb8 *

[Event "0x990fdb4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, not Scheveningen"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Bd7 7.O-O g6 8.Nxc6 
bxc6 9.f4 Bg4 10.Qd3 Bg7 *

[Event "0x99102ab2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C55"]
[Opening "Two knights defence (Modern bishop's opening)"]

1.e4 e5 2.Bc4 Nf6 3.d3 Nc6 4.Nf3 Be7 5.O-O O-O 6.Bb3 d6 7.c3 h6 8.Re1 Nh7 
9.Nbd2 Ng5 10.Nxg5 Bxg5 *

[Event "0x9918b9d8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 h6 7.Be3 c5 8.e5 dxe5 
9.dxe5 Qxd1+ 10.Rxd1 Ng4 *

[Event "0x99466bbc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C80"]
[Opening "Ruy Lopez"]
[Variation "open, 8...Be6"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.Be3 Be7 10.Nbd2 O-O *

[Event "0x994c9639"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A13"]
[Opening "English"]
[Variation "Neo-Catalan accepted"]

1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 dxc4 5.Na3 Bxa3 6.bxa3 O-O 7.Qc2 Nd5 8.
Qxc4 b6 9.Bb2 Bb7 10.O-O Nd7 *

[Event "0x996c3a63"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Bd2 Bxd2+ 6.Nbxd2 exd4 7.Bxc4 Nc6 
8.O-O Nge7 9.Nb3 O-O 10.Nfxd4 Nxd4 *

[Event "0x99881c06"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C75"]
[Opening "Ruy Lopez"]
[Variation "modern Steinitz defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 Bd7 6.O-O Nf6 7.Re1 Be7 8.d3 O-O 
9.Nbd2 b5 10.Bc2 Re8 *

[Event "0x99a8d4fd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C88"]
[Opening "Ruy Lopez"]
[Variation "closed, anti-Marshall 8.a4"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.a4 Bb7
9.d3 Re8 10.Nbd2 *

[Event "0x99d25a22"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B54"]
[Opening "Sicilian"]
[Variation "Prins (Moscow) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3 e5 6.Nb3 Be6 7.c4 Be7 8.Be3 O-O
9.Nc3 Nbd7 10.Qd2 Rc8 *

[Event "0x99dd4847"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E18"]
[Opening "Queen's Indian"]
[Variation "old main line, 7.Nc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Bd2 f5 
9.Qc2 Nxd2 10.Qxd2 Nc6 *

[Event "0x99e7785d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.e3 c5 7.Bd2 Bxc3 8.Bxc3 
cxd4 9.Bxd4 Nc6 10.Bxf6 gxf6 *

[Event "0x9a57c09f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 Nc6 6.Qa4 Bb4+ 7.Bd2 Nd5 8.Bxb4 
Nxb4 9.a3 b5 10.Qxb5 Nc2+ *

[Event "0x9a594d00"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Bd2 Bxd2+ 6.Nbxd2 exd4 7.Bxc4 Nc6 
8.O-O Nf6 9.e5 Nd5 10.Nb3 O-O *

[Event "0x9a6181f3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A01"]
[Opening "Nimzovich-Larsen attack"]
[Variation "modern variation"]

1.b3 e5 2.Bb2 Nc6 3.c4 Nf6 4.e3 d5 5.cxd5 Nxd5 6.a3 Bd6 7.Qc2 O-O 8.Nf3 
Qe7 9.Nc3 Nxc3 10.Qxc3 f5 11.Bb5 e4 *

[Event "0x9a713cf3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C67"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence, open variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6 6.Bxc6 dxc6 7.dxe5 Nf5 8.
Qxd8+ Kxd8 9.h3 Bd7 10.Rd1 Kc8 *

[Event "0x9b06f9b7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B64"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f4"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O
O-O 9.f4 h6 10.Bh4 Bd7 *

[Event "0x9b422ccf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.Qd2 e5 8.d5 Nc5 
9.f3 a5 10.O-O-O Bd7 *

[Event "0x9b4ce7ca"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A30"]
[Opening "English"]
[Variation "symmetrical variation"]

1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.b3 Be7 7.Bb2 O-O 8.Nc3 d5 
9.Ne5 Qc7 *

[Event "0x9b55cc6e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.Bg5 Na6 7.Nbd2 Be7 8.c3 O-O
9.e3 cxd4 *

[Event "0x9b881c77"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A34"]
[Opening "English"]
[Variation "symmetrical, three knights system"]

1.c4 c5 2.Nc3 Nf6 3.Nf3 d5 4.cxd5 Nxd5 5.e4 Nb4 6.Bc4 Be6 7.Bxe6 Nd3+ 8.
Kf1 fxe6 *

[Event "0x9b91e09a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.Be2"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O Nc6 8.Kh1 
O-O 9.f4 Nxd4 *

[Event "0x9ba52e1d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B40"]
[Opening "Sicilian"]
[Variation "Anderssen variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Nxc6 bxc6 7.e5 Nd5 8.Ne4
f5 9.exf6 Nxf6 10.Nd6+ Bxd6 *

[Event "0x9baad9af"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B49"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be2 a6 7.Be3 b5 8.Nxc6 
dxc6 9.f4 Bb7 10.O-O c5 *

[Event "0x9bb88434"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 h6 7.Be3 e5 8.d5 c6 9.
Qd2 h5 10.h3 a6 *

[Event "0x9bc69c8c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.Nge2 Nc6 8.d5 Ne5 
9.Ng3 h5 10.Be2 e6 *

[Event "0x9be586ba"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 Nc6 6.O-O Bc5 7.Nb3 Be7 8.e4 
O-O 9.Nc3 a6 10.Be3 Qc7 *

[Event "0x9bf890df"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.Be2"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O Nc6 8.Kh1 
a6 9.a4 O-O 10.f4 Qc7 *

[Event "0x9c02831"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A00"]
[Opening "Polish (Sokolsky) opening"]

1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 O-O 8.O-O b6 
9.a4 Bb7 *

[Event "0x9c1b334"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.c3 Nf6 5.Qe2 a6 6.Ba4 e5 7.O-O Be7 8.d4 b5 
9.Bc2 O-O 10.dxe5 dxe5 *

[Event "0x9c33c16"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C42"]
[Opening "Petrov"]
[Variation "Paulsen attack"]

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nc4 Nxe4 5.d4 d5 6.Ne3 g6 7.Nd2 Bg7 8.c3 O-O
9.Nxe4 dxe4 10.Bc4 Nd7 *

[Event "0x9c3b836d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D73"]
[Opening "Neo-Gruenfeld, 5.Nf3"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.c4 dxc4 6.Na3 c3 7.bxc3 O-O 8.O-O c5
9.e3 Nc6 10.Qe2 Qa5 *

[Event "0x9c4724e4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B67"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.Nxc6 Bxc6 10.Qe1 Qa5 *

[Event "0x9c4b806a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A41"]
[Opening "Modern defence"]

1.d4 d6 2.c4 g6 3.Nc3 Bg7 4.Nf3 Nd7 5.g3 e5 6.Bg2 Nh6 7.O-O O-O 8.e4 c6 9.
h3 f5 10.dxe5 dxe5 11.exf5 gxf5 *

[Event "0x9c4d0acb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A30"]
[Opening "English"]
[Variation "symmetrical variation"]

1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O g6 6.b3 Bg7 7.Bb2 O-O 8.Nc3 Na6 
9.d4 d5 10.dxc5 Nxc5 11.Nxd5 Nxd5 12.Bxg7 Kxg7 13.cxd5 Qxd5 14.Qxd5 Bxd5 *

[Event "0x9c7c3e6b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B13"]
[Opening "Caro-Kann"]
[Variation "exchange variation"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.Bd3 Nc6 5.c3 g6 6.Bf4 Nf6 7.Nf3 Bf5 8.Bxf5 
gxf5 9.O-O e6 10.Nbd2 Bg7 *

[Event "0x9c850b22"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Qxc4 c5 8.Qc2 
b6 9.Nc3 Bb7 10.O-O b5 *

[Event "0x9c8eb02f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.b3 Ne4 8.Bb2 a5 9.
Nbd2 Bf5 10.Re1 Nxd2 *

[Event "0x9c91e12c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B88"]
[Opening "Sicilian"]
[Variation "Sozin, Leonhardt variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3 Be7 8.Be3 
O-O 9.O-O Bd7 10.f4 Nxd4 *

[Event "0x9cabcab8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B91"]
[Opening "Sicilian"]
[Variation "Najdorf, Zagreb (fianchetto) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 e5 7.Nde2 Be6 8.Bg2 
Be7 9.O-O b5 10.h3 b4 *

[Event "0x9ccc3aad"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.O-O c6 6.b3 O-O 7.Bb2 Bf5 8.c4 a5 9.
Nc3 Ne4 10.Rc1 Nxc3 *

[Event "0x9d04b5cc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.Be2"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O O-O 8.f4 a6
9.Kh1 Qc7 10.Qe1 Re8 *

[Event "0x9d27192b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 c5 6.dxc5 Qa5 7.cxd5 Nxd5 8.Qxd5
Bxc3+ 9.Bd2 Be6 10.Qxb7 Bxd2+ *

[Event "0x9d2afff3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.f3 
Nbd7 9.g4 Be7 10.Qd2 Rc8 *

[Event "0x9d41873"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Qxc4 b5 8.Qc6 
Rb8 9.Bf4 Nd5 10.Bd2 Bb7 *

[Event "0x9d59e46a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 c5 7.d5 e6 8.Qd2 exd5 9.
Nxd5 Be6 10.Ne2 Bxd5 *

[Event "0x9d772cd8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.cxd5 cxd5 8.Ne5 
Ng4 9.f4 Nxe5 10.dxe5 e6 *

[Event "0x9d86e52e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3 Ng4 8.Bg5 f6 
9.Bc1 Nc6 10.O-O f5 *

[Event "0x9d8a50a1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.cxd5 exd5 5.Nc3 Nf6 6.Bg5 Be7 7.Qc2 g6 8.e3 Bf5
9.Bd3 Bxd3 10.Qxd3 O-O *

[Event "0x9dd12746"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B75"]
[Opening "Sicilian"]
[Variation "dragon, Yugoslav attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 
Bd7 9.O-O-O h5 10.Bc4 Ne5 *

[Event "0x9df2027a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.cxd5 cxd5 8.Ne5 
Nc6 9.Nc3 e6 10.Bf4 Bd7 *

[Event "0x9e219c2a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D53"]
[Opening "QGD"]
[Variation "4.Bg5 Be7"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.Nf3 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qc2 c5
9.dxc5 Nc6 10.O-O-O *

[Event "0x9e3f0fae"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.h4 e5 8.d5 c6 9.
h5 cxd5 10.cxd5 Nc5 *

[Event "0x9e61b389"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Bg2 Nc6 6.Qa4 Bb4+ 7.Bd2 Bd6 8.O-O 
O-O 9.Qxc4 e5 10.dxe5 Nxe5 *

[Event "0x9e63541"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A60"]
[Opening "Benoni defence"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 Bd6 6.Nf3 O-O 7.g3 Bc7 8.Bg2 d6
9.O-O a6 10.a4 Re8 *

[Event "0x9e6c4e69"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 c5 6.dxc5 Qa5 7.cxd5 Nxd5 8.Qxd5
Bxc3+ 9.Bd2 Be6 10.Bxc3 Qxc3+ *

[Event "0x9e6c845c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Nxc6 bxc6 7.Bd3 d5 8.O-O 
Nf6 9.Re1 Bb7 10.Bf4 Be7 *

[Event "0x9e770b70"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be2 a6 7.O-O Be7 *

[Event "0x9ed17ce3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 a5 7.c4 *

[Event "0x9ef4a092"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 c6 8.dxc6
Nxc6 9.d5 *

[Event "0x9f105457"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A00"]
[Opening "Mieses opening"]

1.d3 d5 2.Nd2 e5 3.g3 Nf6 4.Bg2 Nc6 5.c3 a5 6.Ngf3 Be7 7.O-O O-O 8.Qc2 b6 
9.b3 Bb7 *

[Event "0x9f128ad5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B09"]
[Opening "Pirc"]
[Variation "Austrian attack, 6.Bd3"]

1.e4 d6 2.d4 g6 3.Nc3 Bg7 4.f4 Nf6 5.Nf3 O-O 6.Bd3 Bg4 7.h3 Bxf3 8.Qxf3 
Nc6 9.Be3 Nd7 10.Qf2 e5 *

[Event "0x9f19ac71"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.O-O d5 7.cxd5 Nxd5 8.Nc3 
Nb6 9.e3 a5 10.b3 Na6 *

[Event "0x9f48047e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.d4 Nf6 5.Nc3 cxd4 6.Qxd4 e5 7.Qd3 h6 8.Be3 
Be7 9.O-O a6 10.Bc4 b5 *

[Event "0x9f5de0be"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian"]
[Variation "dragon variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O Nc6 8.Nb3 
O-O 9.Bg5 Be6 10.Kh1 Nd7 *

[Event "0x9f6dda4e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A25"]
[Opening "English"]
[Variation "closed system"]

1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.e3 d6 6.Nge2 Nge7 7.O-O O-O 8.d3 Be6
*

[Event "0x9f7dc23"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "Linares variation"]

1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 Nf6 5.Nc3 b5 6.Bf4 Ba6 7.e5 b4 8.exf6 bxc3 
9.bxc3 gxf6 *

[Event "0x9f8c0c1f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.Be2"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O O-O 8.Be3 
a6 9.a4 Nc6 10.f4 Re8 *

[Event "0x9fa3aee8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B66"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.Be2 h6
9.Bh4 Be7 10.O-O O-O *

[Event "0x9faafaa6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "semi-Slav, Noteboom variation"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 5.Bg5 Be7 6.Bxe7 Nxe7 7.e3 b5 8.a4 Nd5
9.Be2 Nxc3 10.bxc3 Nd7 *

[Event "0x9fd880dc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.dxc5 dxc5 8.Qxd8 
Rxd8 9.Bxc5 Nc6 10.Ba3 e6 *

[Event "0xa0211019"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A09"]
[Opening "Reti accepted"]

1.Nf3 d5 2.c4 dxc4 3.Na3 c5 4.Nxc4 f6 5.b3 e5 6.Bb2 Nc6 7.g3 Nge7 8.Bg2 
Nd5 9.O-O Be7 *

[Event "0xa02a2aaf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C69"]
[Opening "Ruy Lopez"]
[Variation "exchange, Bronstein variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Qd6 6.d3 f6 7.Be3 Bg4 8.Nbd2 
O-O-O 9.Rb1 Ne7 10.b4 g5 *

[Event "0xa03cc61e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 Nc6 7.g5 Nd7 8.Be3 Be7
9.Rg1 O-O 10.Rg3 d5 *

[Event "0xa054ae7f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E35"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation, 5.cd ed"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Bg5 h6 7.Bxf6 Qxf6 8.e3 
O-O 9.Nf3 Bf5 10.Bd3 Bxd3 *

[Event "0xa061bf21"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "Linares variation"]

1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 Nf6 5.Nc3 b5 6.Bf4 Ba6 7.e5 b4 8.e6 *

[Event "0xa06a21c2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A94"]
[Opening "Dutch"]
[Variation "stonewall with Ba3"]

1.Nf3 e6 2.g3 f5 3.Bg2 Nf6 4.d4 Be7 5.O-O O-O 6.c4 d5 7.b3 c6 8.Ba3 Nbd7 
9.Bxe7 Qxe7 10.Nbd2 b6 *

[Event "0xa08e3122"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A98"]
[Opening "Dutch"]
[Variation "Ilyin-Genevsky variation with Qc2"]

1.Nf3 f5 2.d4 Nf6 3.g3 e6 4.Bg2 Be7 5.O-O O-O 6.c4 Qe8 7.Nc3 d6 8.Qc2 Qh5 
9.b3 Nc6 10.Ba3 Bd7 *

[Event "0xa0bb6743"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bd3 Nc6 7.Be3 Nb4 8.Be4 
f5 9.exf6 exf6 10.a3 N4d5 11.Qh5+ *

[Event "0xa0ccf729"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Nge7 7.f4 Nxd4 8.Qxd4
b5 9.O-O *

[Event "0xa1123cd2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 a6 7.Qd2 c5 8.d5 Qa5 9.
a4 e6 10.dxe6 Bxe6 *

[Event "0xa11c1498"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D48"]
[Opening "QGD semi-Slav"]
[Variation "Meran, old main line"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 Nbd7 6.Nc3 dxc4 7.Bxc4 b5 8.Bd3 a6
9.e4 c5 10.e5 cxd4 *

[Event "0xa12a16f4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B92"]
[Opening "Sicilian"]
[Variation "Najdorf, Opovcensky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Nbd7 8.g4 h6
9.g5 hxg5 10.Bxg5 Be7 *

[Event "0xa13907bb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 c5 7.d5 e6 8.Qd2 exd5 9.
cxd5 a6 10.a4 Qa5 *

[Event "0xa148d2e3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B31"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (with ...g6, without ...d6)"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.Bxc6 dxc6 5.d3 Bg7 6.h3 Nf6 7.Nc3 Nd7 8.Be3 
e5 9.Qd2 Qe7 10.Bh6 O-O *

[Event "0xa1499c93"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.b3 Ne4 8.Bb2 a5 9.
Nbd2 a4 10.Nxe4 dxe4 *

[Event "0xa15b2482"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B02"]
[Opening "Alekhine's defence"]
[Variation "Scandinavian variation"]

1.e4 Nf6 2.Nc3 d5 3.e5 Ne4 4.Nce2 d4 5.c3 Nc6 6.Nxd4 Nxd4 7.Qa4+ c6 8.Qxd4
Qxd4 9.cxd4 Ng5 10.Bc4 Bf5 *

[Event "0xa1687da1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be7 8.f3 Be6
9.Qd2 Qc7 10.g4 O-O *

[Event "0xa17926c8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.Be2 Be7 8.Qd2 
O-O 9.O-O-O Bd7 10.f4 Nxd4 *

[Event "0xa191b1fe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Bd2 Bxd2+ 6.Nbxd2 exd4 7.Bxc4 Nc6 
8.O-O Nf6 9.e5 Nd5 10.Qb3 Na5 11.Qa4+ *

[Event "0xa1a7c2f0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B31"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (with ...g6, without ...d6)"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 e5 6.c3 Nge7 7.d4 cxd4 8.cxd4 
exd4 9.Bf4 a6 10.Bc4 d6 *

[Event "0xa1d3a202"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A13"]
[Opening "English"]
[Variation "Neo-Catalan"]

1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 5.b3 b6 6.Bb2 Bb7 7.O-O O-O 8.e3 c5 9.
Nc3 dxc4 10.bxc4 Nc6 11.Qe2 Rc8 *

[Event "0xa1d87c5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B07"]
[Opening "Robatsch defence"]
[Variation "Geller's system"]

1.Nf3 g6 2.d4 Bg7 3.e4 d6 4.c3 Nf6 5.Nbd2 O-O 6.Be2 c5 7.dxc5 dxc5 8.O-O 
Nc6 9.Qc2 Qc7 10.Re1 b6 *

[Event "0xa1f2e5d6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O 
h5 9.h3 Bd6 10.Qd2 Nxd4 *

[Event "0xa1fb0001"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B17"]
[Opening "Caro-Kann"]
[Variation "Steinitz variation"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Nc3 e6 7.Bd3 Be7 8.O-O 
O-O 9.Qe2 c5 10.Rd1 cxd4 *

[Event "0xa20b78e5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "modern Scheveningen"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be2 Nf6 7.O-O Be7 8.Kh1 
O-O 9.f4 Bd7 10.Nb3 Rc8 *

[Event "0xa249bdad"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3 c6 8.d5 Na6 9.
O-O Ng4 10.Bg5 f6 *

[Event "0xa269105d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 d6 7.Bg2 Bd7 8.O-O Nf6
9.Re1 Qc7 10.a4 Be7 *

[Event "0xa2aaa827"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E19"]
[Opening "Queen's Indian"]
[Variation "old main line, 9.Qxc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Qc2 
Nxc3 9.Qxc3 f5 10.b3 Bf6 *

[Event "0xa2b3f938"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C67"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence, open variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6 6.Bxc6 dxc6 7.dxe5 Nf5 8.
Qxd8+ Kxd8 9.Nc3 Ne7 10.Ne4 h6 *

[Event "0xa2c5e084"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C07"]
[Opening "French"]
[Variation "Tarrasch, open variation"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 Qxd5 5.Ngf3 cxd4 6.Bc4 Qd6 7.O-O Nf6 8.Nb3
Nc6 9.Nbxd4 Nxd4 10.Nxd4 a6 11.Bb3 Qc7 *

[Event "0xa2ccd8e9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.cxd5 cxd5 8.Ne5 
Nbd7 9.Nc3 e6 10.f4 a6 *

[Event "0xa2dd0fbd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni"]
[Variation "Nimzovich (knight's tour) variation"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Nd2 Bg7 8.Nc4 O-O
9.Bg5 h6 10.Bh4 Na6 *

[Event "0xa2df8be6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 O-O 7.a3 Be7 8.d5 
exd5 9.cxd5 Re8 10.Be3 d6 *

[Event "0xa2e1b8a4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A33"]
[Opening "English"]
[Variation "symmetrical variation"]

1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6 6.g3 Bb4 7.Bg2 O-O 8.O-O 
Qe7 9.Nc2 Bxc3 10.bxc3 Rd8 *

[Event "0xa2e4e800"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.c3 cxd4 7.cxd4 Be7 8.Bg5 
O-O 9.a4 bxa4 10.Qxa4 h6 *

[Event "0xa36ab019"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Nc3 c5 *

[Event "0xa3998dbf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B20"]
[Opening "Sicilian defence"]

1.e4 c5 2.d3 g6 3.g3 Bg7 4.Bg2 Nc6 5.f4 e6 6.Nf3 Nge7 7.O-O O-O 8.c3 b6 9.
Na3 d5 10.e5 Qd7 *

[Event "0xa3c16ab8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Bxd2+ 7.Qxd2 O-O 8.Nc3
d5 9.cxd5 exd5 10.O-O Na6 *

[Event "0xa3d8dab"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D53"]
[Opening "QGD"]
[Variation "4.Bg5 Be7"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 h6 6.Bh4 O-O 7.Rc1 b6 8.cxd5 exd5
9.Nf3 Bb7 10.Be2 Nbd7 *

[Event "0xa3e20b5d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B76"]
[Opening "Sicilian"]
[Variation "dragon, Yugoslav attack, Rauser variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 
O-O 9.O-O-O d5 10.Qe1 e5 *

[Event "0xa3e6c828"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.e3 Nbd7 8.cxd5 
exd5 9.Bd3 *

[Event "0xa454b54d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 a6 7.Qd2 Nc6 8.Nge2 Rb8 
9.h4 *

[Event "0xa4e1a17c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni defence"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.Bf4 Bg7 8.Qa4+ 
Bd7 9.Qb3 Qc7 10.h3 O-O *

[Event "0xa4eaeaf4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni defence"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 d6 5.Nc3 exd5 6.cxd5 g6 7.Bf4 a6 8.a4 Bg7 
9.h3 O-O 10.e3 Ne8 *

[Event "0xa50ad9c1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B40"]
[Opening "Sicilian"]
[Variation "Anderssen variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Ndb5 Bb4 7.a3 Bxc3+ 8.
Nxc3 d5 9.exd5 exd5 10.Bb5 *

[Event "0xa5111169"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C67"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence, open variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.Re1 Nd6 6.Nxe5 Be7 7.Bf1 O-O 8.d4
Nf5 9.c3 Nxe5 10.Rxe5 d6 *

[Event "0xa51718bf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni defence"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.h3 Bg7 8.Bf4 a6 
9.a4 O-O 10.e3 Nh5 *

[Event "0xa52b46da"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B67"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 b5 10.Qe1 Nxd4 *

[Event "0xa5ae70c6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.Bg5 dxc4 6.Qxc4 Be7 7.e3 *

[Event "0xa5becec3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C49"]
[Opening "Four knights"]

1.e4 e5 2.Nf3 Nf6 3.Nc3 Nc6 4.Bb5 Bb4 5.O-O O-O 6.d3 Bxc3 7.bxc3 d6 8.h3 
Ne7 9.Re1 c6 10.Bc4 Ng6 *

[Event "0xa5c9f15e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B08"]
[Opening "Pirc"]
[Variation "classical system, 5.Be2"]

1.d4 Nf6 2.Nf3 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.O-O c6 7.Re1 Qc7 8.e5 dxe5
9.Nxe5 Nbd7 10.Bf4 Nxe5 *

[Event "0xa5dd4bd5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Nge7 7.Nb3 Ng6 8.Bg2 
Rb8 9.f4 Be7 10.Be3 f6 *

[Event "0xa620f456"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.Bf4 Nxc3 7.bxc3 dxc4 8.e3 
Be6 9.Qb1 b6 10.Ng5 Bd5 *

[Event "0xa62ab3fa"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 Nc6 5.O-O d5 6.c4 Be7 7.dxc5 Bxc5 8.a3 a5 
9.cxd5 *

[Event "0xa657925f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B73"]
[Opening "Sicilian"]
[Variation "dragon, classical, 8.O-O"]

1.e4 c5 2.Nf3 g6 3.d4 cxd4 4.Nxd4 Bg7 5.Nc3 Nc6 6.Be3 Nf6 7.Be2 d6 8.O-O 
O-O 9.f4 Bd7 10.Kh1 Nxd4 *

[Event "0xa6640b28"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 Nc6 6.O-O Qb6 7.Nb3 d5 8.Be3 
Qd8 9.c4 dxc4 10.Bxc6+ bxc6 11.Qxd8+ *

[Event "0xa6773ac2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E38"]
[Opening "Nimzo-Indian"]
[Variation "classical, 4...c5"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 Na6 6.a3 Bxc3+ 7.Qxc3 Nxc5 8.f3
d6 9.e4 O-O 10.Be3 Qe7 *

[Event "0xa69cbeac"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B08"]
[Opening "Pirc"]
[Variation "classical, h3 system"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Nf3 Nf6 5.h3 O-O 6.Be3 c6 7.a4 Nbd7 8.a5 e5 9.
dxe5 dxe5 10.Qd6 Re8 *

[Event "0xa6c08c66"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 d5 5.c4 cxd4 6.Nxd4 e5 7.Nb3 d4 8.O-O *

[Event "0xa6f79d29"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.Bg5 Na6 7.Nbd2 Be7 8.c3 O-O
9.Ne5 Bxg2 10.Kxg2 Qc7 *

[Event "0xa702c4e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.Nf3 Qf5 7.Qb3 c5 8.a3 
Ba5 9.Qc4 O-O 10.b4 cxb4 *

[Event "0xa71aff63"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Nc3 exd4 6.Nxd4 Ne7 7.Bxc4 O-O 8.
Bf4 Ng6 9.Bg3 Nd7 10.O-O Nde5 *

[Event "0xa71cdb7c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B84"]
[Opening "Sicilian"]
[Variation "Scheveningen (Paulsen), classical variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 a6 7.O-O Be7 8.a4 Nc6
9.Be3 O-O 10.Kh1 Qc7 *

[Event "0xa72a528d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C03"]
[Opening "French"]
[Variation "Tarrasch"]

1.e4 e6 2.d4 d5 3.Nd2 a6 4.e5 c5 5.c3 Nc6 6.Ndf3 cxd4 7.cxd4 Nge7 8.Bd3 
Nf5 9.Ne2 Be7 10.a3 Bd7 *

[Event "0xa72c1f3f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A41"]
[Opening "Modern defence"]

1.d4 d6 2.c4 g6 3.Nc3 Bg7 4.Nf3 e5 5.dxe5 dxe5 6.Qxd8+ Kxd8 *

[Event "0xa73235dc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A84"]
[Opening "Dutch defence"]

1.d4 f5 2.c4 g6 3.Nc3 Nf6 4.g3 Bg7 5.Bg2 O-O 6.Nf3 d6 7.O-O Qe8 8.d5 Na6 
9.Be3 Bd7 10.Qd2 Ng4 *

[Event "0xa73c16fc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.dxc5 dxc5 8.e5 Nfd7
9.f4 f6 10.exf6 Rxf6 *

[Event "0xa74d0c1d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D53"]
[Opening "QGD"]
[Variation "4.Bg5 Be7"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 h6 6.Bh4 O-O 7.Rc1 c5 8.dxc5 dxc4
9.Qc2 Nd5 10.Bxe7 Qxe7 *

[Event "0xa752ef5d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B31"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (with ...g6, without ...d6)"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 Nf6 6.Re1 O-O 7.e5 Nd5 8.d4 cxd4
9.cxd4 Nc7 10.Nc3 Nxb5 *

[Event "0xa7550540"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Qxc4 c5 8.Qc2 
b6 9.dxc5 Bxc5 10.Nc3 Bb7 *

[Event "0xa7567ad7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Re1 Nc6 7.d5 Nb4 8.c4 Bf5 
9.Na3 c6 10.Nd4 Bd7 *

[Event "0xa76d320e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A92"]
[Opening "Dutch defence"]

1.d4 f5 2.Nf3 Nf6 3.c4 e6 4.g3 Be7 5.Bg2 O-O 6.d5 Ne4 7.Nbd2 Nxd2 8.Bxd2 
Bf6 9.Qc2 d6 10.dxe6 Bxe6 *

[Event "0xa76e12ef"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D37"]
[Opening "QGD"]
[Variation "4.Nf3"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qd2 c6
9.e4 Re8 10.O-O-O Nd7 *

[Event "0xa78322bc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 d6 7.Bg2 Bd7 8.O-O Nf6
9.a4 Nxd4 10.Qxd4 Qc7 *

[Event "0xa78d8fb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.g3 dxc4 6.Qxc4 b5 7.Qc2 Bb7 8.Bg5 
Nbd7 9.Bg2 Qb6 10.O-O c5 *

[Event "0xa7940d47"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn"]
[Variation "Torre attack"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.c3 h6 5.Bxf6 Qxf6 6.e4 Nc6 7.d5 Ne5 8.Be2 
Nxf3+ 9.Bxf3 e5 10.a4 g6 *

[Event "0xa7a4d9d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B23"]
[Opening "Sicilian"]
[Variation "closed"]

1.e4 c5 2.Nc3 e6 3.Nge2 Nf6 4.g3 Be7 5.Bg2 O-O 6.O-O Nc6 7.d3 Rb8 8.a4 a6 
9.h3 b5 10.axb5 axb5 *

[Event "0xa7bfaab0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B76"]
[Opening "Sicilian"]
[Variation "dragon, Yugoslav attack, Rauser variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 
Nc6 9.O-O-O d5 10.h4 dxe4 *

[Event "0xa7e92a96"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.b3 Ne4 8.Bb2 a5 9.
Nbd2 Nxd2 10.Nxd2 Na6 *

[Event "0xa7f8b38"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A54"]
[Opening "Old Indian"]
[Variation "Ukrainian variation, 4.Nf3"]

1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Nf3 Nbd7 5.Bg5 Be7 6.e3 O-O *

[Event "0xa80160ea"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B89"]
[Opening "Sicilian"]
[Variation "Sozin, 7.Be3"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Be3 a6 8.Qe2 
Qc7 9.O-O-O Be7 10.Bb3 Na5 *

[Event "0xa854544e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn"]
[Variation "Torre attack"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.c3 cxd4 5.cxd4 Qb6 6.Qc1 Nc6 7.Bxf6 gxf6 8.e3
d5 9.Nc3 Bd7 10.Be2 Rc8 *

[Event "0xa856f733"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A87"]
[Opening "Dutch"]
[Variation "Leningrad, main variation"]

1.d4 f5 2.Nf3 Nf6 3.c4 g6 4.g3 Bg7 5.Bg2 O-O 6.b3 d6 7.Bb2 c6 8.O-O Na6 9.
Nc3 Qc7 10.Rc1 e5 *

[Event "0xa8714"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.Nf3 Qf5 7.Qxf5 exf5 8.
Bd2 c6 9.e3 Nbd7 10.Bd3 Nb6 *

[Event "0xa8cb419f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B27"]
[Opening "Sicilian"]
[Variation "Hungarian variation"]

1.e4 c5 2.Nf3 g6 3.d4 Bg7 4.dxc5 Qa5+ 5.Bd2 Qxc5 6.Bc3 Nf6 7.Bd3 Nc6 8.O-O
O-O 9.Nbd2 d6 10.Nb3 Qb6 *

[Event "0xa8ceb16a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B06"]
[Opening "Robatsch (modern) defence"]

1.d4 g6 2.e4 Bg7 3.c3 d6 4.Bg5 Nf6 5.Nd2 O-O 6.Ngf3 Nbd7 7.Bc4 e5 8.O-O h6
9.Bh4 c6 10.dxe5 dxe5 *

[Event "0xa8d45b4b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B91"]
[Opening "Sicilian"]
[Variation "Najdorf, Zagreb (fianchetto) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 g6 7.Bg2 Bg7 8.O-O O-O
9.h3 Nbd7 10.Kh2 Nc5 *

[Event "0xa8df4f54"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E74"]
[Opening "King's Indian"]
[Variation "Averbakh, 6...c5"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.dxc5 Qa5 8.Bd2 
Qxc5 9.Nf3 Bg4 10.Be3 Qa5 *

[Event "0xa8eb7b24"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 e5 7.dxe5 Nfd7 8.Bb2 
dxe5 9.e4 Nc6 10.Nc3 b6 *

[Event "0xa918ee7d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A11"]
[Opening "English"]
[Variation "Caro-Kann defensive system"]

1.c4 c6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Bf5 5.cxd5 cxd5 6.Qb3 Qc8 7.Nc3 e6 8.d3 
Nc6 9.Bf4 Be7 10.O-O O-O *

[Event "0xa92537a7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Bxc5 7.e3 Nc6 8.Nf3 
d5 9.a3 Qa5 10.O-O-O Bd7 *

[Event "0xa92f66c9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A14"]
[Opening "English"]
[Variation "Neo-Catalan declined"]

1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 5.O-O O-O 6.b3 b6 7.Bb2 Bb7 8.e3 c5 9.
Qe2 Nc6 10.Rd1 Qc7 11.Nc3 Rad8 12.cxd5 exd5 13.d4 Rfe8 *

[Event "0xa94590c9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni"]
[Variation "Nimzovich (knight's tour) variation"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Nd2 Bg7 8.Nc4 O-O
9.Bg5 h6 10.Bf4 Nbd7 *

[Event "0xa957d140"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3 c6 8.O-O exd4 
9.Bxd4 Qe7 *

[Event "0xa983de57"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
b5 9.Bd3 Nc6 10.a3 Bb7 *

[Event "0xa99eeefa"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A85"]
[Opening "Dutch with c4 & Nc3"]

1.d4 f5 2.c4 Nf6 3.Nc3 e6 4.e3 Bb4 5.Bd3 Bxc3+ 6.bxc3 O-O 7.Ne2 b6 8.f3 
Nc6 9.O-O Bb7 10.e4 fxe4 *

[Event "0xa9ba4b06"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Bxc5 7.Nf3 b6 8.e3 
Bb7 9.a3 Nc6 10.Rd1 Rc8 *

[Event "0xa9bda14"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B04"]
[Opening "Alekhine's defence"]
[Variation "modern, fianchetto variation"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 g6 5.Bc4 c6 6.O-O Bg7 7.exd6 Qxd6 8.Bg5 
Bg4 9.Nbd2 Nd7 10.Re1 e6 *

[Event "0xa9bfca23"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C65"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 Bc5 5.O-O Nd4 6.Nxd4 Bxd4 7.c3 Bb6 8.Kh1 
c6 9.Ba4 d5 10.Qe2 dxe4 *

[Event "0xa9c5e9f5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.Qd2 e5 8.d5 c6 9.
h4 cxd5 10.cxd5 Qa5 *

[Event "0xa9d5f890"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Bd3 Qc7 8.O-O Be7
9.Nf3 *

[Event "0xa9dd638c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A94"]
[Opening "Dutch"]
[Variation "stonewall with Ba3"]

1.c4 f5 2.d4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 d5 6.O-O c6 7.b3 O-O 8.Ba3 Bxa3 
9.Nxa3 Bd7 10.Nc2 Be8 *

[Event "0xaa20f6e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C42"]
[Opening "Petrov"]
[Variation "Nimzovich attack"]

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.Nc3 Nxc3 6.dxc3 Be7 7.Bf4 O-O 8.
Qd2 Nd7 9.O-O-O Nc5 10.Be3 c6 *

[Event "0xaa45aea1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Riumin variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.Nc3 O-O 8.O-O 
Na6 9.Rc1 Re8 10.Re1 d5 *

[Event "0xaa67d46c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 a6 6.O-O Nc6 7.e3 Bd7 8.Nc3 Be7 
*

[Event "0xaab25af1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Qd3 a6 5.e4 Bb7 6.e5 Nd5 7.Bg2 c5 *

[Event "0xaafba5eb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B07"]
[Opening "Robatsch defence"]
[Variation "Geller's system"]

1.Nf3 g6 2.e4 Bg7 3.d4 d6 4.c3 Nf6 5.Nbd2 O-O 6.Be2 Nc6 7.O-O e5 8.dxe5 
dxe5 9.Qc2 Nh5 10.Rd1 Nf4 *

[Event "0xaafffad5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B76"]
[Opening "Sicilian"]
[Variation "dragon, Yugoslav attack, 7...O-O"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Bc4 
Nc6 9.Bb3 Bd7 10.h4 Rc8 *

[Event "0xab08602f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B97"]
[Opening "Sicilian"]
[Variation "Najdorf, 7...Qb6"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Nb3 
Nbd7 9.Be2 Be7 10.Qd2 Qc7 *

[Event "0xab4f0171"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Re1 Nc6 7.d5 Nb4 8.e4 e5 
9.Bd2 Na6 10.c4 Nc5 *

[Event "0xab5e1373"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni defence"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.Bf4 a6 8.e4 b5 9.
Qe2 Be7 10.O-O-O Nh5 *

[Event "0xab71c5e3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 c5 7.Bxb4 cxb4 8.O-O 
O-O 9.Nbd2 d6 10.Re1 Nbd7 *

[Event "0xab7e57c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C02"]
[Opening "French"]
[Variation "advance, Euwe variation"]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Bd7 6.dxc5 Bxc5 7.b4 Bb6 8.b5 Na5 
9.Bd3 Nc4 10.a4 Qc7 11.Qe2 a6 12.bxa6 Rxa6 13.O-O Ne7 *

[Event "0xab7ef518"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Be2 Be7 8.O-O Qc7
9.Kh1 O-O 10.Qe1 b5 *

[Event "0xabcd1189"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B22"]
[Opening "Sicilian"]
[Variation "2.c3, Heidenfeld variation"]

1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.Nf3 Nc6 5.Na3 g6 6.g3 Bg7 7.Bg2 O-O 8.O-O d6 
9.exd6 Qxd6 10.d4 cxd4 *

[Event "0xabe4acf7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B22"]
[Opening "Sicilian"]
[Variation "Alapin's variation (2.c3)"]

1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4 5.Qxd4 e6 6.Nf3 Nc6 7.Qe4 f5 8.exf6 
Nxf6 9.Qc2 d5 10.Bg5 e5 *

[Event "0xabe62c75"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.Qd2 Be7 8.f3 
O-O 9.g4 d5 10.g5 Nh5 *

[Event "0xabf5b5f3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Lipnitzky attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.O-O Nc6 8.a3 Be7
9.Kh1 O-O 10.Ba2 d5 *

[Event "0xac416799"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.Na3 a6 7.c4 cxd4 *

[Event "0xac64e078"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B18"]
[Opening "Caro-Kann"]
[Variation "classical variation"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Nc5 Nd7 6.Bd3 Bxd3 7.Nxd3 e6 8.Qe2
Ngf6 9.Nf3 Bd6 10.O-O O-O *

[Event "0xac82f64a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 c5 7.Qe2 cxd4 8.exd4 
Bb4+ 9.Nc3 O-O 10.O-O Nbd7 *

[Event "0xac9b6948"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.cxd5 exd5 5.Nc3 Nf6 6.Qc2 Na6 7.Bg5 Be7 8.e3 
Nb4 9.Qb1 *

[Event "0xace8c5a7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Bb4+ 5.Bd2 Be7 6.Bg2 O-O 7.O-O c6 8.Qb3 b6 
9.Nc3 Nbd7 10.Rfc1 Bb7 *

[Event "0xacf0bd12"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.d4 cxd4 5.Qxd4 e5 6.Qd3 a6 7.Bxd7+ Bxd7 8.
O-O h6 9.c4 Nf6 10.Nc3 Be7 *

[Event "0xacf65735"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B30"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (without ...d6)"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 d6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Ba4 b5 8.Bc2 e5 
9.h3 g6 10.a4 Bg7 *

[Event "0xacf9a51e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "semi-Slav"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.e3 f5 5.g4 fxg4 6.Qxg4 Nf6 7.Qg2 c5 8.cxd5 *

[Event "0xad30f48"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Riumin variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.Nc3 O-O 8.O-O d5
9.cxd5 Nxd5 10.Qc2 Nb4 *

[Event "0xad38808f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B63"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...Be7"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O
O-O 9.Nb3 a6 10.f3 b5 *

[Event "0xad74e79d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.Nf3 Bg7 5.O-O O-O 6.c4 d6 7.Nc3 Qe8 8.Nd5 Nxd5
9.cxd5 Qb5 10.Ng5 Qb6 *

[Event "0xada31235"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 Nbd7 7.Bd3 Nb6 *

[Event "0xadc1429e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D11"]
[Opening "QGD Slav"]
[Variation "4.e3"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 Nbd7 6.O-O dxc4 7.Bxc4 b5 8.Bd3 a6
9.a4 Bb7 10.e4 Be7 *

[Event "0xae0802bb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E17"]
[Opening "Queen's Indian"]
[Variation "anti-Queen's Indian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 O-O 7.Qc2 c5 8.d5 exd5 
9.Ng5 g6 10.Qd1 d6 *

[Event "0xae093295"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B09"]
[Opening "Pirc"]
[Variation "Austrian attack, 6.Bd3"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Bd3 Na6 7.O-O c5 8.d5 Bg4 
9.Bc4 Nc7 10.h3 Bxf3 *

[Event "0xae0b885c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B62"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Margate (Alekhine) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Bb5 Bd7 8.Bxc6 
bxc6 9.Qf3 Qa5 10.Bxf6 gxf6 *

[Event "0xae151845"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ Bc6 8.Qb3 
dxc4 9.Qxc4 O-O 10.g3 Bxf3 *

[Event "0xae56fa11"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.e3 c5 7.Bd2 Bxc3 8.Bxc3 
cxd4 9.Bxd4 Nc6 10.Bc3 Qc5 *

[Event "0xae61fed7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A71"]
[Opening "Benoni"]
[Variation "classical, 8.Bg5"]

1.d4 Nf6 2.Nf3 e6 3.c4 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.e4 Bg7 8.Bg5 O-O 
9.Nd2 a6 10.a4 Qc7 *

[Event "0xae771f54"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C80"]
[Opening "Ruy Lopez"]
[Variation "open, 8...Be6"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.Be3 Be7 10.c3 Nc5 *

[Event "0xae77ef10"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 c6 7.Bb2 b5 8.Nbd2 Nbd7
9.e4 Rb8 10.Re1 Nb6 *

[Event "0xae79b027"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C49"]
[Opening "Four knights"]
[Variation "symmetrical, Metger unpin"]

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3 d6 7.Bg5 Bxc3 8.bxc3 
Qe7 9.Bxc6 bxc6 10.Nd2 h6 *

[Event "0xae875f00"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A70"]
[Opening "Benoni"]
[Variation "classical with e4 and Nf3"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.e4 Bg7 8.Bd3 O-O 
9.O-O a6 10.a4 Bg4 *

[Event "0xae8a24f4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A13"]
[Opening "English opening"]

1.c4 e6 2.Nc3 Bb4 3.Nf3 Ne7 4.d4 Bxc3+ 5.bxc3 d6 6.e4 Nbc6 7.d5 Nb8 8.Be2 
Na6 9.Be3 O-O 10.O-O b6 *

[Event "0xaee4e268"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni defence"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Bf4 a6 8.a4 Qe7 
9.h3 Nbd7 10.Nd2 Ne5 *

[Event "0xaeefd652"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.c3 Be7 7.a4 b4 8.cxb4 cxb4 
9.a5 O-O 10.Bg5 h6 *

[Event "0xaf15b5b4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E55"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system, Bronstein variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 O-O 6.Nf3 d5 7.O-O dxc4 8.Bxc4 
Nbd7 9.Qe2 a6 10.a3 Ba5 *

[Event "0xaf370ce"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D22"]
[Opening "QGA"]
[Variation "Alekhine defence"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 Bg4 5.Bxc4 e6 6.h3 Bh5 7.Nc3 Nf6 8.g4 Bg6 
9.Ne5 c5 *

[Event "0xaf4312db"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A32"]
[Opening "English"]
[Variation "symmetrical variation"]

1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 a6 6.e3 Be7 7.Be2 O-O 8.O-O 
Qc7 9.Bd2 d6 10.Rc1 Nbd7 11.b3 Rb8 *

[Event "0xaf4a4b62"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 d6 7.Be3 Nf6 8.f4 Bd7
9.O-O Be7 10.Bf3 *

[Event "0xaf4bd004"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 e6 4.Nf3 d5 5.O-O Bd6 6.c4 c6 7.b3 Qe7 8.Ne5 O-O 9.
Bb2 Bd7 10.Qc1 Be8 *

[Event "0xaf7b3089"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A27"]
[Opening "English"]
[Variation "three knights system"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 f5 4.d4 e4 5.Ng5 Be7 6.Nh3 Nf6 7.e3 O-O *

[Event "0xaf7bdccd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A00"]
[Opening "Polish (Sokolsky) opening"]

1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.d4 e4 6.Nd2 c6 7.a4 Bd6 8.c4 f5 *

[Event "0xafa3a1c2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.c3 Nf6 6.Re1 a6 7.Bxc6 Bxc6 8.d4 
Bxe4 9.Bg5 Bc6 10.Bxf6 gxf6 *

[Event "0xafac82bb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.Qe2 cxd4 7.exd4 Be7 8.O-O 
O-O 9.Nc3 Nc6 10.Rd1 Nb4 *

[Event "0xafb291c9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxc3 7.bxc3 Qxd5 8.
Qb3 Be6 9.Qxd5 Bxd5 10.e3 Nd7 *

[Event "0xafcd8050"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni"]
[Variation "Nimzovich (knight's tour) variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 c5 4.d5 exd5 5.cxd5 d6 6.Nf3 g6 7.Nd2 Bg7 8.Nc4 O-O
9.Bg5 h6 10.Bh4 a6 *

[Event "0xafde22a3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B56"]
[Opening "Sicilian"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be3 e5 7.Ndb5 a6 8.Na3 
b5 9.Nd5 Nxd5 10.Qxd5 Qc7 *

[Event "0xafe14a6c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Bb4+ 5.Nbd2 dxc4 6.Bg2 c3 7.bxc3 Bxc3 8.Rb1
Ne4 9.O-O Bxd2 10.Bxd2 Nxd2 *

[Event "0xafe1687f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.cxd5 exd5 5.Nc3 Nf6 6.Bg5 Bf5 7.e3 Nbd7 8.Bd3 
Bxd3 9.Qxd3 Bd6 10.O-O O-O *

[Event "0xaff14081"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.Qd2 e5 8.d5 c6 9.
Bd1 *

[Event "0xaffcc90f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.Bd2 Be7 
9.Qe2 Nbd7 10.Rfd1 c5 *

[Event "0xb014a628"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B06"]
[Opening "Robatsch (modern) defence"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.h4 h5 5.Be3 c6 6.Qd2 b5 7.Nh3 Bxh3 8.Rxh3 Nf6 
9.f3 Nbd7 10.a4 a6 *

[Event "0xb0255b8c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Nc3 exd4 6.Nxd4 Ne7 7.Bxc4 O-O 8.
Be3 *

[Event "0xb0535768"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 d5 6.O-O c6 7.cxd5 Nxd5 8.Nc3 
Nxc3 9.bxc3 Qa5 10.Qb3 Nd7 *

[Event "0xb05925b8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.cxd5 exd5 5.Nc3 Bf5 6.Qb3 Qb6 7.Na4 Qxb3 8.axb3
Na6 9.Bd2 Nf6 10.e3 Nb4 *

[Event "0xb0618e24"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B08"]
[Opening "Pirc"]
[Variation "classical system, 5.Be2"]

1.Nf3 g6 2.e4 d6 3.d4 Nf6 4.Nc3 Bg7 5.Be2 O-O 6.O-O Bg4 7.h3 Bxf3 8.Bxf3 
Nc6 9.d5 Ne5 10.Be2 c6 *

[Event "0xb0683d01"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Nf3 g6 4.c4 d6 5.b4 Bg7 6.Bb2 O-O 7.Bg2 e6 8.Nbd2 Qe7 
9.O-O Nbd7 10.Qb3 Kh8 *

[Event "0xb068921b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D97"]
[Opening "Gruenfeld"]
[Variation "Russian, Alekhine (Hungarian) variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 a6 8.e5 b5 
9.Qb3 Nfd7 10.h4 c5 *

[Event "0xb0ba51a5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B62"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Keres variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd3 Be7 8.O-O-O
O-O 9.Nb3 a5 10.a3 a4 *

[Event "0xb0ceb919"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Qa4+ Bd7 6.Qxc4 Bc6 7.Bg2 Bd5 8.Qa4+
Qd7 9.Qxd7+ Nbxd7 10.Nc3 Bb4 *

[Event "0xb0f0363e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B23"]
[Opening "Sicilian"]
[Variation "Grand Prix attack, Schofman variation"]

1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bc4 e6 6.f5 Nge7 7.fxe6 dxe6 8.d3 a6
9.a4 Nd4 10.O-O Nec6 *

[Event "0xb12c545a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C58"]
[Opening "two knights defence"]
[Variation "Blackburne variation"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+ c6 7.dxc6 bxc6 8.
Qf3 cxb5 9.Qxa8 Bc5 10.b4 Bxb4 *

[Event "0xb133fc38"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A98"]
[Opening "Dutch"]
[Variation "Ilyin-Genevsky variation with Qc2"]

1.d4 f5 2.c4 e6 3.g3 Nf6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d6 7.Nc3 Qe8 8.Qc2 Qh5 
9.Bg5 h6 10.Bxf6 Bxf6 *

[Event "0xb136ce6e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A89"]
[Opening "Dutch"]
[Variation "Leningrad, main variation with Nc6"]

1.d4 f5 2.Nf3 Nf6 3.c4 g6 4.Nc3 Bg7 5.g3 O-O 6.Bg2 d6 7.O-O Nc6 8.d5 Ne5 
9.Nxe5 dxe5 10.e4 f4 *

[Event "0xb14f00d5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 h6 7.Be3 Nbd7 8.Qd2 c5 
9.Rd1 *

[Event "0xb16d7484"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni"]
[Variation "Uhlmann variation"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Bg5 Bg7 8.Nd2 h6 
9.Bh4 g5 10.Bg3 Nh5 *

[Event "0xb1777b08"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 a6 7.O-O c5 8.Bd3 Nbd7
9.Re1 Be7 10.e4 cxd4 *

[Event "0xb17c34c9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D48"]
[Opening "QGD semi-Slav"]
[Variation "Meran, Reynolds' variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 Nbd7 6.Nc3 dxc4 7.Bxc4 b5 8.Bd3 a6
9.e4 c5 10.d5 Qc7 *

[Event "0xb18a99ea"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E18"]
[Opening "Queen's Indian"]
[Variation "old main line, 7.Nc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Bd2 d5 
9.Ne5 Nd7 10.Nxe4 dxe4 *

[Event "0xb193a62d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 a6 7.O-O c5 8.Bd3 Nbd7
9.Qe2 b6 10.Rd1 Bb7 *

[Event "0xb1a83335"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni"]
[Variation "Nimzovich (knight's tour) variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 d6 5.Nc3 exd5 6.cxd5 g6 7.Nd2 Bg7 8.Nc4 O-O
9.g3 Ne8 10.Bg2 Nd7 *

[Event "0xb1dbf65e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.Bf4 Nxc3 7.bxc3 c5 8.e3 
O-O 9.Be2 *

[Event "0xb1f6cd88"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Qxc4 c5 8.Qc2 
b6 9.Nc3 Bb7 10.O-O Rc8 *

[Event "0xb1fa162a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.O-O a6 5.Bxd7+ Bxd7 6.d4 cxd4 7.Qxd4 e5 8.
Qd3 h6 9.a4 Nf6 10.c4 b5 *

[Event "0xb229719b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 e6 5.Bxc4 c5 6.O-O Nf6 7.Bd3 Nbd7 8.Qe2 b6
9.Rd1 Bb7 10.Nbd2 Qc7 *

[Event "0xb22fdebc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.g4 h6 8.f4 Nc6 
9.h3 Bd7 10.Qf3 Rc8 *

[Event "0xb23958c7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D98"]
[Opening "Gruenfeld"]
[Variation "Russian, Smyslov variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 
Nfd7 9.Rd1 Nc6 10.Be2 Nb6 *

[Event "0xb2646b84"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3 c6 8.O-O Na6 
9.Qc2 *

[Event "0xb27203e7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D37"]
[Opening "QGD"]
[Variation "4.Nf3"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qc2 
Na6 9.a3 dxc4 10.Bxc4 c5 *

[Event "0xb281a9b0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 c5 6.O-O Nc6 7.Qa4 Bd7 8.Qxc4 
cxd4 9.Nxd4 Rc8 10.Nc3 Qa5 *

[Event "0xb28cace0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.Bh4 Nxc3 7.bxc3 dxc4 8.
Qa4+ Qd7 9.Qxc4 b6 10.e3 Ba6 *

[Event "0xb2a4927d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A65"]
[Opening "Benoni"]
[Variation "6.e4"]

1.d4 e6 2.c4 c5 3.d5 Nf6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nge2 Bg7 8.Ng3 O-O
9.Be2 h5 10.Bg5 Qb6 *

[Event "0xb2c80a17"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Bf1 Bg4 8.d4 
cxd4 9.cxd4 Bxf3 10.gxf3 d5 *

[Event "0xb2d09c63"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Bb4+ 5.Bd2 Be7 6.Bg2 O-O 7.O-O c6 8.Qc2 b6 
9.Rd1 Ba6 10.b3 Nbd7 *

[Event "0xb2d1acad"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D45"]
[Opening "QGD semi-Slav"]
[Variation "Stoltz variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nc3 Nbd7 6.Qc2 Bd6 7.Bd3 O-O 8.O-O h6 
9.b3 b6 10.Bb2 Bb7 *

[Event "0xb31f8758"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C94"]
[Opening "Ruy Lopez"]
[Variation "closed, Breyer defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 
9.h3 Nb8 10.d3 c5 *

[Event "0xb32b08fd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f3 e5 7.Nb3 Be6 8.Be3 h5 
9.Qd2 Nbd7 10.a4 Be7 *

[Event "0xb3484a2f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C79"]
[Opening "Ruy Lopez"]
[Variation "Steinitz defence deferred (Russian defence)"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O d6 6.Bxc6+ bxc6 7.d4 exd4 8.
Qxd4 c5 9.Qd3 Bb7 10.Nc3 Be7 *

[Event "0xb35672eb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A13"]
[Opening "English"]
[Variation "Wimpey system"]

1.c4 e6 2.Nf3 d5 3.b3 Nf6 4.Bb2 c5 5.e3 Nc6 6.cxd5 exd5 7.Bb5 Bd7 8.O-O 
Bd6 *

[Event "0xb35ab1b9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B03"]
[Opening "Alekhine's defence"]
[Variation "exchange variation"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.exd6 cxd6 6.Nc3 g6 7.Nf3 Bg7 8.Be2 
O-O 9.Be3 Nc6 10.h3 Bf5 *

[Event "0xb36da593"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C41"]
[Opening "Philidor"]
[Variation "Improved Hanham variation"]

1.e4 e5 2.Nf3 d6 3.d4 Nf6 4.Nc3 Nbd7 5.Bc4 Be7 6.O-O h6 7.a4 c6 8.Ba2 O-O 
9.h3 Qc7 10.Be3 Re8 *

[Event "0xb3ed1a7e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B60"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Qb6 7.Nb3 e6 8.Be2 
a6 9.O-O Bd7 10.Kh1 Qc7 *

[Event "0xb3f0c917"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.d4 Nf6 5.Nc3 a6 6.Bxd7+ Nxd7 7.O-O e6 8.Bg5 
Qc7 9.a4 h6 10.Bh4 cxd4 *

[Event "0xb3f688d4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B01"]
[Opening "Scandinavian"]
[Variation "Pytel-Wade variation"]

1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6 4.d4 Nf6 5.Nf3 a6 6.g3 b5 7.Bg2 Bb7 8.O-O e6
9.Ne5 Bxg2 10.Kxg2 b4 *

[Event "0xb3ffa47d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B89"]
[Opening "Sicilian"]
[Variation "Sozin, 7.Be3"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Be3 a6 8.Qe2 
Qc7 9.O-O-O Na5 10.Bd3 b5 *

[Event "0xb400fc53"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C11"]
[Opening "French"]
[Variation "Steinitz variation"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.Nce2 c5 6.c3 cxd4 7.cxd4 f6 8.exf6 
Nxf6 9.Nf3 Nc6 10.Ng3 Bd6 *

[Event "0xb402e605"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Nxc6 bxc6 7.Bd3 d5 8.O-O 
Nf6 9.Re1 Bb7 10.Bg5 Be7 *

[Event "0xb42367a9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B32"]
[Opening "Sicilian defence"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Be3 Bg7 6.Nc3 Nf6 7.f3 O-O 8.Nb3 
d6 9.Qd2 Be6 10.O-O-O a5 *

[Event "0xb42c7bd9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 e6 5.Bxc4 c5 6.O-O Nf6 7.Bd3 Nbd7 8.Qe2 
Qc7 9.Rd1 b6 10.Nc3 Bb7 *

[Event "0xb44ddb44"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E55"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system, Bronstein variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 d5 7.O-O dxc4 8.Bxc4 
Nbd7 9.Qe2 a6 10.a4 Qe7 *

[Event "0xb45349aa"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Nge7 7.Bf4 Ng6 8.Bg3 
Be7 9.O-O O-O 10.Qd2 b5 *

[Event "0xb47c32ce"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.dxc5 dxc5 8.e5 Nfd7
9.f4 f6 10.exf6 exf6 *

[Event "0xb4b12658"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "semi-Slav"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.e3 f5 5.f4 Qh4+ *

[Event "0xb4cf4fc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C11"]
[Opening "French defence"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.exd5 exd5 5.Nf3 Bd6 6.Bd3 Be6 7.O-O O-O 8.Ne2 
c6 9.Ng3 Qc7 10.b3 Nbd7 *

[Event "0xb4d69461"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B66"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.Nb3 b5
9.f3 Bd7 10.O-O-O Be7 *

[Event "0xb4dbe94d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
Qa5 9.Nf3 Nc6 10.Rb1 O-O *

[Event "0xb4e33371"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C41"]
[Opening "Philidor"]
[Variation "Larsen variation"]

1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Nxd4 g6 5.Bc4 Bg7 6.O-O Nf6 7.Nc3 O-O 8.Bg5 
h6 9.Bh4 Nc6 10.Nxc6 bxc6 *

[Event "0xb51ea6e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn"]
[Variation "Torre attack"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.c3 h6 5.Bxf6 Qxf6 6.e4 b6 7.Bd3 Bb7 8.Nbd2 
Qd8 9.O-O cxd4 10.Nxd4 Be7 *

[Event "0xb53417d7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 O-O 7.a3 Be7 8.d5 
exd5 9.cxd5 Re8 10.Be3 Ng4 *

[Event "0xb54c5ecb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 h6 7.Be3 e5 8.d5 Kh7 *

[Event "0xb5684799"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B03"]
[Opening "Alekhine's defence"]
[Variation "exchange variation"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.exd6 cxd6 6.Nc3 g6 7.Bd3 Bg7 8.Nge2 
O-O 9.d5 e5 10.O-O Na6 *

[Event "0xb56bc03b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian"]
[Variation "dragon variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O Nc6 8.Nb3 
O-O 9.Bg5 Be6 10.Qd2 Ne5 *

[Event "0xb5884680"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Yates variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 a5 7.O-O O-O 8.Bf4 Be7
9.Qc2 c5 10.Nc3 cxd4 *

[Event "0xb59cdf70"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 c5 7.O-O O-O 8.Bxb4 
cxb4 9.Nbd2 d6 10.Qb3 *

[Event "0xb5c2115f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Bg2 a6 6.O-O Nc6 7.e3 Bd7 8.Nc3 Rb8 
9.Ne5 Na5 10.Bd2 Bb4 *

[Event "0xb5fe7e9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B17"]
[Opening "Caro-Kann"]
[Variation "Steinitz variation"]

1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Nxf6+ Nxf6 7.Bc4 Bf5 8.
O-O e6 9.Ne5 Nd7 10.Bf4 Be7 *

[Event "0xb60234bc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B22"]
[Opening "Sicilian"]
[Variation "Alapin's variation (2.c3)"]

1.e4 c5 2.c3 e6 3.Nf3 Nc6 4.d3 d5 5.Nbd2 Nf6 6.g3 Be7 7.Bg2 O-O 8.O-O b5 
9.Re1 Rb8 10.e5 Nd7 *

[Event "0xb60d0091"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 c5 7.d5 e6 8.Qd2 exd5 9.
cxd5 h6 10.Bf4 *

[Event "0xb61185a8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A77"]
[Opening "Benoni"]
[Variation "classical, 9...Re8, 10.Nd2"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 
9.O-O Re8 10.Nd2 Bd7 *

[Event "0xb611c1c8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A37"]
[Opening "English"]
[Variation "symmetrical variation"]

1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 e6 6.O-O Nge7 7.d3 O-O *

[Event "0xb63659eb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C01"]
[Opening "French"]
[Variation "exchange variation"]

1.e4 e6 2.d4 d5 3.exd5 exd5 4.c4 Nf6 5.Nc3 Be7 6.Nf3 O-O 7.Be3 c6 8.Qb3 
dxc4 9.Bxc4 Nbd7 *

[Event "0xb64c7c81"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.O-O c6 6.b3 O-O 7.Bb2 Bf5 8.c4 Re8 
9.Nbd2 *

[Event "0xb65b5608"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D22"]
[Opening "QGA"]
[Variation "Alekhine defence"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 Nf6 5.Bxc4 b5 6.Be2 Bb7 7.a4 b4 8.Nbd2 e6 
9.O-O Nbd7 10.Nc4 Bd5 *

[Event "0xb672ed23"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C77"]
[Opening "Ruy Lopez"]
[Variation "Morphy defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d4 exd4 6.e5 Ne4 7.O-O Nc5 8.Bg5 
Be7 9.Bxe7 Qxe7 10.Bxc6 dxc6 *

[Event "0xb67b3386"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Qf3 Qb6 8.a3 Nc6 
9.Nxc6 Qxc6 10.Bd3 b5 *

[Event "0xb6f0a17d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b6 4.Bg2 Bb7 5.O-O c5 6.c4 cxd4 7.Qxd4 d6 8.Nc3 Be7
9.Bg5 a6 10.Bxf6 Bxf6 *

[Event "0xb73743a2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C60"]
[Opening "Ruy Lopez"]
[Variation "fianchetto (Smyslov/Barnes) defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 g6 4.d4 exd4 5.Bg5 Be7 6.Bxe7 Qxe7 7.Bxc6 dxc6 8.
Qxd4 Nf6 9.O-O O-O 10.Nc3 Rd8 *

[Event "0xb77b1d7e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
Qa5 9.Rb1 a6 10.Nf3 Nc6 *

[Event "0xb77ce97a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B07"]
[Opening "Pirc defence"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be3 c6 5.f3 b5 6.g4 Bg7 7.Qd2 h5 8.g5 Nfd7 9.
f4 Nb6 10.Nf3 d5 *

[Event "0xb794f5a9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B66"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Be7 9.f4 Qc7 10.Nf3 O-O *

[Event "0xb79d9e91"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "modern Scheveningen, main line"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O O-O 8.f4 
Nc6 9.Be3 e5 10.Nb3 a5 *

[Event "0xb7aa453e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C43"]
[Opening "Petrov"]
[Variation "modern attack, Symmetrical variation"]

1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 d5 5.Nxe5 Nd7 6.Nxd7 Bxd7 7.O-O Bd6 8.
Nc3 Qh4 9.g3 Nxc3 10.bxc3 Qg4 *

[Event "0xb7aaf060"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E18"]
[Opening "Queen's Indian"]
[Variation "old main line, 7.Nc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Bd2 f5 
9.d5 Bf6 10.Rc1 c5 *

[Event "0xb7c1d30c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A30"]
[Opening "English"]
[Variation "symmetrical, hedgehog system"]

1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 d6
*

[Event "0xb7f18383"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 e5 7.dxe5 Nfd7 8.Bb2 
dxe5 9.c4 Nc6 10.Nc3 b6 *

[Event "0xb7f76157"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E74"]
[Opening "King's Indian"]
[Variation "Averbakh, 6...c5"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 h6 8.Be3 e6 9.
dxe6 Bxe6 10.Qd2 Kh7 *

[Event "0xb7fbaa70"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A48"]
[Opening "King's Indian"]
[Variation "Torre attack"]

1.d4 Nf6 2.Nf3 g6 3.Bg5 Bg7 4.Nbd2 d6 5.e4 O-O 6.c3 Nbd7 7.Bc4 h6 8.Bh4 e5
9.O-O g5 10.Bg3 Qe7 *

[Event "0xb803b370"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 d6 4.Nf3 g6 5.O-O Bg7 6.b4 O-O 7.Bb2 Ne4 8.Nbd2 a5 
9.b5 a4 10.Rb1 c6 *

[Event "0xb8082057"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D90"]
[Opening "Gruenfeld"]
[Variation "Three knights variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.cxd5 Nxd5 6.Bd2 O-O 7.Rc1 Nb6 8.Bg5 
h6 9.Bh4 c6 10.e3 N8d7 *

[Event "0xb817d27b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be3 Qc7 7.Bd3 Nf6 8.O-O 
Ne5 9.h3 Bc5 10.f4 *

[Event "0xb81a3d38"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B66"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.f4 h6 
9.Bh4 Bd7 10.O-O-O Qc7 *

[Event "0xb8252a41"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 dxc4 7.e4 c5 8.dxc5 
Qxd1+ 9.Rxd1 Na6 10.Bxc4 Nxc5 *

[Event "0xb86647eb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A34"]
[Opening "English"]
[Variation "symmetrical, three knights system"]

1.c4 c5 2.Nc3 Nf6 3.Nf3 d5 4.cxd5 Nxd5 5.e3 Nc6 6.Bb5 Nxc3 7.bxc3 Bd7 *

[Event "0xb867f199"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 c6 7.e3 Bg4 8.Qb3 Qb6 
9.Nd2 Nbd7 10.cxd5 Nxd5 *

[Event "0xb86f34d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B11"]
[Opening "Caro-Kann"]
[Variation "two knights, 3...Bg4"]

1.e4 c6 2.Nc3 d5 3.Nf3 Bg4 4.h3 Bh5 5.d4 e6 6.exd5 cxd5 7.g4 Bg6 8.Ne5 Nc6
9.h4 Nxe5 10.dxe5 Bb4 *

[Event "0xb876cb3a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B14"]
[Opening "Caro-Kann"]
[Variation "Panov-Botvinnik attack, 5...e6"]

1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6 6.c5 Be7 7.b4 O-O 8.Nf3 b6 
9.Rb1 Ne4 10.Qc2 f5 *

[Event "0xb877ca6f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O 
b5 9.Nxc6 Qxc6 10.f3 Bb7 *

[Event "0xb87d06f4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 e5 7.dxe5 dxe5 *

[Event "0xb8cd5d5c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B88"]
[Opening "Sicilian"]
[Variation "Sozin, Leonhardt variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3 Be7 8.Be3 
O-O 9.O-O Na5 10.f4 b6 *

[Event "0xb922a0c1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B23"]
[Opening "Sicilian"]
[Variation "closed, Korchnoi variation"]

1.e4 c5 2.Nc3 e6 3.g3 d5 4.exd5 exd5 5.Bg2 Nf6 6.d3 Nc6 7.Bg5 Be7 8.Nge2 
d4 9.Bxf6 Bxf6 10.Nd5 Be5 *

[Event "0xb924c11"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E18"]
[Opening "Queen's Indian"]
[Variation "old main line, 7.Nc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Bd2 f5 
9.d5 Bf6 10.Rc1 Na6 *

[Event "0xb93afe54"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 d5 6.O-O c6 7.b3 Ne4 8.Bb2 Bf5 
9.e3 Nd7 10.Qe2 Qa5 *

[Event "0xb94561c9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 e6 8.Nf3 
exd5 9.b4 Qd6 10.a3 O-O *

[Event "0xb959fe38"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.cxd5 cxd5 8.Ne5 
Ng4 9.Nf3 Nc6 10.Nc3 e6 *

[Event "0xb9690902"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3 Ng4 8.Bg5 f6 
9.Bh4 g5 10.Bg3 Nh6 *

[Event "0xb97d73d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E75"]
[Opening "King's Indian"]
[Variation "Averbakh, main line"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 e6 8.Nf3 h6 9.
Bh4 exd5 10.cxd5 b5 *

[Event "0xb994cce0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Bxc5 7.Nf3 Nc6 8.a3 
b6 9.e3 *

[Event "0xba120876"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C19"]
[Opening "French"]
[Variation "Winawer, advance, poisoned pawn variation"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Qg4 Qa5 8.Bd2 
Qa4 9.Qxg7 Rg8 10.Qxh7 cxd4 *

[Event "0xba14228b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Be7 7.Bb5+ Bd7 8.e5 
dxe5 9.fxe5 Nd5 10.Nxd5 exd5 *

[Event "0xba1c1344"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.O-O d6 7.b3 Qa5 8.Bb2 Qh5 
9.Nbd2 Bh3 10.e3 Na6 *

[Event "0xba1f889"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.Qd2 e5 8.d5 Nc5 
9.f3 h6 10.Be3 Bd7 *

[Event "0xba2ca400"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B25"]
[Opening "Sicilian"]
[Variation "closed, 6.f4"]

1.e4 c5 2.Nc3 Nc6 3.d3 d6 4.g3 g6 5.Bg2 Bg7 6.f4 e6 7.Nf3 Nge7 8.O-O O-O 
9.Be3 b6 10.Bf2 Bb7 *

[Event "0xba60cd5c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Bxd2+ 7.Qxd2 d6 8.O-O 
Nbd7 9.Nc3 Ne4 10.Nxe4 Bxe4 *

[Event "0xba68c9e9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B18"]
[Opening "Caro-Kann"]
[Variation "classical, 6.h4"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 e6 8.Ne5 Bh7
9.Bd3 Bxd3 10.Qxd3 Nd7 *

[Event "0xba918d1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "modern Scheveningen, main line"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Nc6 7.Be2 Be7 8.O-O 
O-O 9.Be3 a6 10.Kh1 e5 *

[Event "0xba9f179e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A00"]
[Opening "Polish (Sokolsky) opening"]

1.b4 d5 2.Bb2 Nf6 3.e3 Bf5 4.Nf3 e6 5.c4 Nbd7 *

[Event "0xbadea840"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Bxd2+ 7.Qxd2 O-O 8.O-O
d6 9.Qc2 *

[Event "0xbaeed92b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 d6 7.Bg2 Bd7 8.O-O Nf6
9.Re1 Qc7 10.Nxc6 bxc6 *

[Event "0xbaf7aee1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.Qd2 
Nbd7 9.f3 Rc8 10.g4 Nb6 *

[Event "0xbb03096d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B04"]
[Opening "Alekhine's defence"]
[Variation "modern, Larsen variation"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 dxe5 5.Nxe5 g6 6.Bc4 c6 7.Nd2 Bg7 8.Ndf3 
O-O 9.O-O Nd7 10.Nd3 N7b6 *

[Event "0xbb2bcc25"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.cxd5 cxd5 8.Ne5 
Nc6 9.Nc3 e6 10.Bf4 Nd7 *

[Event "0xbb2f9d47"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B97"]
[Opening "Sicilian"]
[Variation "Najdorf, 7...Qb6"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Nb3 
Qe3+ 9.Qe2 Qxe2+ 10.Bxe2 Nc6 *

[Event "0xbb703a8a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "modern Scheveningen, main line"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O O-O 8.f4 
Nc6 9.Be3 Qc7 10.Ndb5 Qb8 *

[Event "0xbb80e325"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O 
Bd6 9.h3 b5 10.Nde2 Ne7 *

[Event "0xbb8919ea"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D11"]
[Opening "QGD Slav"]
[Variation "4.e3"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 Nbd7 6.O-O Bd6 7.Nc3 O-O 8.e4 dxc4
9.Bxc4 e5 10.Bg5 Qe7 *

[Event "0xbb8e6876"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C49"]
[Opening "Four knights"]
[Variation "symmetrical variation"]

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4 5.O-O O-O 6.d3 d6 7.Bg5 Bxc3 8.bxc3 
Bd7 9.d4 h6 10.Bh4 Qe7 *

[Event "0xbbc03992"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 c5 7.O-O O-O 8.Bxb4 
cxb4 9.Nbd2 d6 10.Re1 Qc7 *

[Event "0xbbcb0f37"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C79"]
[Opening "Ruy Lopez"]
[Variation "Steinitz defence deferred (Russian defence)"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O d6 6.Qe2 b5 7.Bb3 Na5 8.d4 Nxb3
9.axb3 Nd7 10.Nc3 Bb7 *

[Event "0xbbe99209"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.g3 Bd6 6.Bg2 Nbd7 7.O-O O-O 8.Nbd2 
Qe7 9.a3 *

[Event "0xbc0c5708"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D45"]
[Opening "QGD semi-Slav"]
[Variation "Stoltz variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nc3 Nbd7 6.Qc2 Bd6 7.Bd3 O-O 8.O-O 
dxc4 9.Bxc4 Qe7 10.h3 c5 *

[Event "0xbc18a9cd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.Bg5 Na6 7.Nbd2 Be7 8.e3 O-O
9.Qe2 cxd4 10.Nxd4 Bxg2 *

[Event "0xbc75d5c4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E18"]
[Opening "Queen's Indian"]
[Variation "old main line, 7.Nc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Bd2 d5 
9.Ne5 Nd7 10.Bf4 Nxe5 *

[Event "0xbc7eb2c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 dxc4 7.e4 Bg4 8.Bxc4 
Nh5 9.Bg5 Bxf3 10.Qxf3 Qxd4 *

[Event "0xbcb0775a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "modern Scheveningen, main line"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be2 Nf6 7.O-O Be7 8.Be3 
O-O 9.f4 e5 10.fxe5 dxe5 *

[Event "0xbcb0b600"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Nc3 exd4 6.Nxd4 Ne7 7.Bxc4 Nbc6 8.
Be3 Nxd4 9.Bxd4 O-O 10.a3 *

[Event "0xbce1c284"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Qa4+ Bd7 6.Qxc4 Bc6 7.Bg2 Bd5 8.Qa4+
Qd7 9.Qxd7+ Nbxd7 10.O-O c5 *

[Event "0xbd35a91d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D45"]
[Opening "QGD semi-Slav"]
[Variation "Stoltz variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nc3 Nbd7 6.Qc2 Bd6 7.Bd3 O-O 8.O-O 
dxc4 9.Bxc4 Qe7 10.h3 e5 *

[Event "0xbd4ddb7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D22"]
[Opening "QGA"]
[Variation "Alekhine defence"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 Bg4 5.h3 Bh5 6.g4 Bg6 7.Ne5 Nd7 8.Nxc4 b5 
9.Na5 c5 10.Bd2 Ngf6 *

[Event "0xbd71a2e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Bg2 a6 6.O-O Nc6 7.Nc3 Rb8 8.e4 Be7 
9.d5 Nb4 10.Ne5 Nd3 *

[Event "0xbd7e1832"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B58"]
[Opening "Sicilian"]
[Variation "classical"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Ng4 7.Bg5 Qb6 8.Bb5 
Bd7 9.O-O h6 10.Be3 Nxe3 *

[Event "0xbd8ce63d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B06"]
[Opening "Robatsch defence"]

1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.Bc4 d6 5.Qf3 e6 6.Nge2 Nd7 7.O-O Qe7 8.Bb3 e5 
9.Bg5 Ngf6 10.Rad1 h6 *

[Event "0xbdba7bd8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B18"]
[Opening "Caro-Kann"]
[Variation "classical variation"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.N1e2 e6 7.h4 h6 8.Nf4 
Bh7 9.Bd3 Bxd3 10.Qxd3 Nf6 *

[Event "0xbdc4cb5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Bxc5 7.e3 Nc6 8.Nf3 
d5 9.a3 Qa5 10.O-O-O dxc4 *

[Event "0xbde7198c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 c5 7.Qe2 cxd4 8.exd4 
Nc6 9.O-O Be7 10.Be3 O-O *

[Event "0xbdea0ba6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B40"]
[Opening "Sicilian"]
[Variation "Anderssen variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Ndb5 Bb4 7.a3 Bxc3+ 8.
Nxc3 d5 9.exd5 Nxd5 10.Bd2 Nxc3 *

[Event "0xbdea599d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C19"]
[Opening "French"]
[Variation "Winawer, advance, positional main line"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.a3 Bxc3+ 6.bxc3 c5 7.Nf3 Bd7 8.Rb1 
Qc7 9.Bd3 Ba4 10.O-O Nd7 *

[Event "0xbe4e1d6e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C74"]
[Opening "Ruy Lopez"]
[Variation "modern Steinitz defence, siesta variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3 f5 6.exf5 Bxf5 7.d4 e4 8.Ng5 d5 
9.f3 e3 10.f4 Bd6 *

[Event "0xbe737292"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A20"]
[Opening "English, Nimzovich variation"]

1.c4 e5 2.Nf3 Nc6 3.d4 e4 4.d5 exf3 5.dxc6 fxg2 6.cxd7+ Qxd7 7.Qxd7+ Bxd7 
8.Bxg2 O-O-O 9.Bf4 Be6 10.Nd2 Bb4 *

[Event "0xbe99bb20"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Bxc5 7.Nf3 b6 8.e3 
Bb7 9.Rd1 a6 10.Be2 Nc6 *

[Event "0xbebfb0a9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A91"]
[Opening "Dutch defence"]

1.d4 e6 2.c4 f5 3.g3 Nf6 4.Bg2 Be7 5.Nc3 O-O 6.Nh3 d6 7.Nf4 Qe8 8.O-O Bd8 
9.e4 e5 10.dxe5 dxe5 *

[Event "0xbed798e0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B88"]
[Opening "Sicilian"]
[Variation "Sozin, Leonhardt variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3 Be7 8.Be3 
O-O 9.O-O Bd7 10.Qe2 Nxd4 *

[Event "0xbee444ee"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Qxc4 b5 8.Qc2 
Bb7 9.O-O c5 10.dxc5 Bxc5 *

[Event "0xbf2ec784"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A93"]
[Opening "Dutch"]
[Variation "stonewall, Botwinnik variation"]

1.d4 e6 2.Nf3 f5 3.g3 Nf6 4.Bg2 Be7 5.O-O O-O 6.c4 d5 7.b3 c6 8.Bb2 Qe8 9.
Nbd2 Nbd7 10.Ne5 Qh5 *

[Event "0xbf3d927d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A48"]
[Opening "King's Indian"]
[Variation "Torre attack"]

1.d4 Nf6 2.Nf3 g6 3.Bg5 Bg7 4.Nbd2 O-O 5.e3 c5 6.c3 b6 7.Bd3 Bb7 8.O-O d6 
*

[Event "0xbf598998"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Bd2 Bxd2+ 6.Nbxd2 exd4 7.Bxc4 Nc6 
8.O-O Qf6 9.b4 Nge7 10.b5 Na5 *

[Event "0xbf7a6c9d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Re1 c5 7.dxc5 *

[Event "0xbfc78fa9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.g5 hxg5 8.Bxg5 
Nc6 9.Qd2 Qb6 10.Nb3 Bd7 *

[Event "0xbfe9233"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E36"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation, 5.a3"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.a3 Bxc3+ 6.Qxc3 dxc4 7.Qxc4 b6 8.Bf4
Ba6 9.Qxc7 Qxc7 10.Bxc7 Nc6 *

[Event "0xc06ff1c7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 Nf6 5.Nf3 c5 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
Qc7 9.Nbd2 Nbd7 10.a3 b5 *

[Event "0xc07281f6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C80"]
[Opening "Ruy Lopez"]
[Variation "open, Bernstein variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.Nbd2 Nc5 10.c3 Be7 *

[Event "0xc0847ae0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C82"]
[Opening "Ruy Lopez"]
[Variation "open, Motzko attack"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.c3 Bc5 10.Qd3 Qd7 *

[Event "0xc0b21d5f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
Qc7 9.Nbd2 Nc6 10.a3 a5 *

[Event "0xc0b8c131"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Bg2 Nc6 6.Qa4 Bb4+ 7.Bd2 Nd5 8.Qb5 
Be7 9.O-O Bf6 10.Qxc4 Nb6 *

[Event "0xc0cc6a15"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Qc7 7.Bg2 Nf6 8.O-O 
Be7 9.Re1 Nxd4 10.e5 Nb5 *

[Event "0xc0e63298"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Lipnitzky attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.a4 Nxe4 8.Nxe4 
d5 9.Bd3 dxe4 10.Bxe4 Nd7 *

[Event "0xc0e9b5e1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Bxc5 7.Nf3 Nc6 8.a3 
b6 9.Rd1 Bb7 10.e4 e5 *

[Event "0xc105df7e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Yates variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 a5 7.O-O O-O 8.Bf4 Be7
9.Nc3 Ne4 10.Qc2 Nxc3 *

[Event "0xc1065c45"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.Na3 a6 7.c4 b4 8.Nc2 cxd4 
9.Nfxd4 Bxg2 10.Kxg2 Qc8 *

[Event "0xc1084a01"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B22"]
[Opening "Sicilian"]
[Variation "Alapin's variation (2.c3)"]

1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 e6 5.Nf3 Nf6 6.Be2 Be7 7.O-O Nc6 8.c4 Qd8
9.dxc5 Qxd1 10.Rxd1 Bxc5 *

[Event "0xc123ba4e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B07"]
[Opening "Pirc defence"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be3 c6 5.Nf3 Bg7 6.Qd2 b5 7.Bd3 Bg4 8.e5 b4 9.
Ne2 Nd5 10.Bh6 O-O *

[Event "0xc1342d29"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B89"]
[Opening "Sicilian"]
[Variation "Sozin, 7.Be3"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Be3 a6 8.Bb3 
Be7 9.f4 O-O 10.Qe2 Nxd4 *

[Event "0xc14eb5b2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.Qd2 e5 8.d5 Qe8 
9.Bd1 c6 10.Nge2 cxd5 *

[Event "0xc177dc85"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E58"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with 8...Bxc3"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 d5 6.Nf3 O-O 7.O-O Nc6 8.a3 Bxc3 
9.bxc3 Qc7 10.Bb2 Na5 *

[Event "0xc17cefba"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 a6 7.Qd2 c5 8.d5 b5 9.
cxb5 Qa5 10.a4 Nbd7 *

[Event "0xc19eb872"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B23"]
[Opening "Sicilian"]
[Variation "Grand Prix attack"]

1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bb5 Nd4 6.O-O Nxb5 7.Nxb5 a6 8.Nc3 
d6 9.Qe1 b5 10.d3 Bb7 *

[Event "0xc1bf1d42"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 c5 6.dxc5 Qa5 7.Rc1 dxc4 8.e3 
Qxc5 9.Qa4+ Nc6 10.Bxc4 O-O *

[Event "0xc1dfa241"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D73"]
[Opening "Neo-Gruenfeld, 5.Nf3"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.c4 dxc4 6.Qa4+ c6 7.Qxc4 Be6 8.Qa4 
Ne4 9.O-O Nd7 10.Nc3 Nxc3 *

[Event "0xc1eff01d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A17"]
[Opening "English"]
[Variation "Queens Indian formation"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 b6 4.e4 Bb7 5.d3 d6 6.g3 Be7 7.Bg2 c5 8.O-O O-O *

[Event "0xc1f5ee77"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 c6 7.Bd3 O-O 8.Nge2 
Bg4 9.Qc2 Bxe2 10.Qxe2 Nbd7 *

[Event "0xc205dbc9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.Bg5 Be7 6.O-O d6 7.Qd3 a6 8.Nbd2 
Nbd7 9.c3 O-O 10.a4 Rb8 *

[Event "0xc20601a3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Be7 7.Be3 O-O 8.Qf3 e5
9.Nf5 Bxf5 10.exf5 Qa5 *

[Event "0xc214779e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E74"]
[Opening "King's Indian"]
[Variation "Averbakh, 6...c5"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 b5 8.cxb5 a6 9.
a4 h6 *

[Event "0xc225616b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 Bb4+ 5.Bd2 Be7 6.Bg2 O-O 7.O-O c6 8.Qc2 b6 
9.b3 Bb7 10.Bc3 Na6 *

[Event "0xc22cb5f5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.e3 O-O 8.Rc1 dxc4 
9.Bxc4 Nbd7 10.O-O c5 *

[Event "0xc244e8be"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Qc7 7.Bg2 d6 8.O-O Bd7
9.Re1 Nxd4 10.Qxd4 Ne7 *

[Event "0xc2b9eb57"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, Benko variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Qb6 7.Nde2 e6 8.O-O 
a6 9.h3 Be7 10.Be3 Qc7 *

[Event "0xc2cec52b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.Nf3 Qf5 7.Qxf5 exf5 8.a3
Bd6 9.g3 Be6 10.Bg2 Nbd7 *

[Event "0xc2e8dcd4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B30"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (without ...d6)"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 d6 4.O-O Bd7 5.c3 Nf6 6.Re1 a6 7.Ba4 c4 8.Bc2 Ng4 
9.b3 b5 10.bxc4 bxc4 *

[Event "0xc2f373d1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.cxd5 exd5 5.Nc3 Nf6 6.Qc2 g6 7.Bg5 Bg7 8.e3 Bf5
9.Bd3 Bxd3 10.Qxd3 Nbd7 *

[Event "0xc2f90a0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Bxc5 7.e3 Nc6 8.Nf3 
d5 9.a3 Qa5 10.Nd2 Bb4 *

[Event "0xc3015ffb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 Ng4 7.Bg5 h6 8.Bh4 g5
9.Bg3 Bg7 10.Be2 h5 *

[Event "0xc32c4818"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f3 e5 7.Nb3 Be6 8.Be3 Be7
9.Qd2 O-O 10.Be2 a5 *

[Event "0xc34b8cee"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.b3 Bg7 5.Bb2 O-O 6.Nf3 d6 7.Nbd2 Nc6 8.O-O Qe8
9.Re1 h6 10.c4 e5 *

[Event "0xc353ed9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b6 4.Bg2 Bb7 5.O-O c5 6.dxc5 *

[Event "0xc37a3066"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C80"]
[Opening "Ruy Lopez"]
[Variation "open, 8...Be6"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.Be3 Be7 10.c3 Qd7 *

[Event "0xc37c6aa9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.Qd2 e5 8.d5 Qe8 
9.Bd1 Nc5 10.Bc2 a5 *

[Event "0xc3de7f65"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.Nf3 Qf5 7.Qxf5 exf5 8.a3
Be7 9.Bf4 c6 10.e3 Nbd7 *

[Event "0xc3dfaa54"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Bb4+ 5.Bd2 Be7 6.Bg2 O-O 7.O-O c6 8.Qb3 b6 
9.Nc3 Nbd7 10.cxd5 exd5 *

[Event "0xc3e6d608"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 d5 6.c4 e5 7.Nb5 *

[Event "0xc3f3e504"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be3 Qc7 7.f4 b5 8.Nb3 *

[Event "0xc4293f9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B76"]
[Opening "Sicilian"]
[Variation "dragon, Yugoslav attack, 7...O-O"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Nb3 
Nc6 9.Qd2 Be6 10.Nd5 Bxd5 *

[Event "0xc4350da7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D73"]
[Opening "Neo-Gruenfeld, 5.Nf3"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.c4 dxc4 6.Qa4+ Nc6 7.Qxc4 Qd5 8.Qa4 
O-O 9.Nc3 Qd7 10.O-O Nd5 *

[Event "0xc4658e2f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Qf3 Nbd7 8.Bd3 
Nc5 9.g4 e5 10.Nf5 g6 *

[Event "0xc48b77f1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "modern Scheveningen, main line"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.Be2 Be7 8.O-O 
O-O 9.f4 Qc7 10.Kh1 Nxd4 *

[Event "0xc48d665d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.Qd2 e5 8.d5 Nc5 
9.f3 a5 10.g4 *

[Event "0xc48f47d0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ Qd7 8.Qxd7+ 
Nbxd7 9.Nb5 Kd8 10.cxd5 exd5 *

[Event "0xc4a6f191"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, Benko variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Qb6 7.Nb3 e6 8.Bf4 
Ne5 9.Be2 a6 10.Bg3 h5 *

[Event "0xc4caecc5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Yates variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 a5 7.O-O O-O 8.Bf4 Be7
9.Qd3 Na6 10.Nc3 d5 *

[Event "0xc4d11d64"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, Benko variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Qb6 7.Nde2 e6 8.O-O 
Be7 9.a3 O-O 10.Ba2 a6 *

[Event "0xc4df369f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C55"]
[Opening "Two knights defence (Modern bishop's opening)"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 Be7 5.Bb3 O-O 6.O-O d6 7.c3 h6 8.Nbd2 Nh7
9.Nc4 Kh8 10.Ne3 Ng5 *

[Event "0xc50d43f9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 c6 7.e3 Be6 8.Nd2 Nbd7
9.Be2 dxc4 10.Bxc4 Bxc4 *

[Event "0xc5160ff3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.O-O d6 7.b3 Qa5 8.Qd2 Qh5 
9.Nc3 Bh3 10.e4 Nbd7 *

[Event "0xc52f6d42"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B56"]
[Opening "Sicilian"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g3 Bg4 7.f3 Bd7 8.Be3 g6
9.Bg2 Bg7 10.O-O O-O *

[Event "0xc550bf59"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 c6 7.Bd3 Nbd7 8.Nge2 
Nh5 9.Bxe7 Qxe7 10.g4 Nhf6 *

[Event "0xc576e6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni defence"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 d6 5.Nc3 exd5 6.cxd5 g6 7.h3 a6 8.a4 Qe7 9.
Bg5 h6 10.Bh4 Nbd7 *

[Event "0xc59493ea"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Nc3 exd4 6.Qxd4 Qxd4 7.Nxd4 Nf6 8.
f3 Bc5 9.Be3 Nc6 10.Nc2 Bxe3 *

[Event "0xc5ab2c75"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 c5 5.Nf3 a6 6.O-O Nf6 7.Bd3 Nbd7 8.Qe2 
Qc7 9.Bd2 *

[Event "0xc5fca4bd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A90"]
[Opening "Dutch defence"]
[Variation "Dutch-Indian (Nimzo-Dutch) variation"]

1.d4 e6 2.c4 f5 3.g3 Nf6 4.Bg2 Bb4+ 5.Bd2 Bxd2+ 6.Qxd2 O-O 7.Nc3 d6 8.Nf3 
Nc6 9.O-O e5 10.d5 Ne7 *

[Event "0xc61ca657"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A18"]
[Opening "English"]
[Variation "Mikenas-Carls, Flohr variation"]

1.c4 Nf6 2.Nc3 e6 3.e4 d5 4.e5 d4 5.exf6 dxc3 6.bxc3 Qxf6 7.d4 c5 8.Nf3 h6
*

[Event "0xc65db0e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.h4 e5 8.d5 h6 9.
Be3 h5 10.f3 c6 *

[Event "0xc65f1344"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.h4 Be7 8.Bg2 Nc6 
9.g5 *

[Event "0xc6861674"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Be7 7.Bb5+ Bd7 8.e5 
dxe5 9.fxe5 Nd5 10.Nxd5 exd5 11.Bxd7+ *

[Event "0xc6bb88a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.Bg5 Qa5+ 6.Bd2 Qd8 7.e3 Ne4 8.Bd3 f5 
9.g4 Bd6 10.gxf5 exf5 *

[Event "0xc6d84b29"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C02"]
[Opening "French"]
[Variation "advance, Paulsen attack"]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.Be2 cxd4 7.cxd4 Nh6 8.Nc3 Nf5
9.Na4 Qa5+ 10.Bd2 Bb4 11.Bc3 Bxc3+ 12.Nxc3 Qb6 13.Bb5 Bd7 *

[Event "0xc6db8410"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
Qa5 9.Nf3 Bg4 10.Rc1 Nd7 *

[Event "0xc71643d2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B54"]
[Opening "Sicilian"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 e6 6.g3 b5 7.Bg2 Bb7 8.O-O Nd7 
9.Re1 Be7 10.a4 bxa4 *

[Event "0xc7300292"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E58"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with 8...Bxc3"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O Nc6 8.a3 Bxc3 
9.bxc3 Qc7 10.Bb2 dxc4 *

[Event "0xc7493a38"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B08"]
[Opening "Pirc"]
[Variation "classical system, 5.Be2"]

1.d4 d6 2.e4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O c6 7.a4 Nbd7 8.a5 e5 
9.dxe5 dxe5 10.Qd6 Re8 *

[Event "0xc77880ce"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Riumin variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.Nc3 O-O 8.O-O 
Na6 9.Bf4 c5 10.d5 d6 *

[Event "0xc7c36c7d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B74"]
[Opening "Sicilian"]
[Variation "dragon, classical, Alekhine variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 g6 7.Be3 Bg7 8.Nb3 
O-O 9.O-O a5 10.a4 Nb4 *

[Event "0xc85dc85"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 Nf6 5.Nf3 c5 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
Qc7 9.Nbd2 Nc6 10.a3 b5 *

[Event "0xc879b28e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A17"]
[Opening "English"]
[Variation "Nimzo-English opening"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4 4.g3 O-O 5.Bg2 c5 6.O-O Nc6 *

[Event "0xc8bbf978"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Nc6 7.Be3 e5 8.Nf3 Ng4
9.Bd2 exf4 *

[Event "0xc8da90c3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.g3 Bd6 6.Bg2 Nbd7 7.O-O O-O 8.Nbd2 
Re8 9.b3 Qe7 *

[Event "0xc8fa62bb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.g3 dxc4 6.Qxc4 b5 7.Qc2 Bb7 8.Bg2 
Nbd7 9.Ne5 Qb6 10.Nxd7 Nxd7 *

[Event "0xc8fae7ec"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B17"]
[Opening "Caro-Kann"]
[Variation "Steinitz variation"]

1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Nxf6+ Nxf6 7.Ne5 Be6 8.
Be2 g6 9.O-O Bg7 10.c4 O-O *

[Event "0xc924ef7f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C07"]
[Opening "French"]
[Variation "Tarrasch, open variation"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 a6 5.dxc5 Bxc5 6.Bd3 Nc6 7.O-O Nge7 *

[Event "0xc9278bed"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Bg2 a6 6.O-O Nc6 7.Nc3 Rb8 8.e4 Be7 
9.d5 Nb4 10.Ne5 exd5 *

[Event "0xc9652a6e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B23"]
[Opening "Sicilian"]
[Variation "closed, 2...Nc6"]

1.e4 c5 2.Nc3 Nc6 3.Bb5 Na5 4.Nf3 e6 5.O-O a6 6.Be2 b5 7.d4 cxd4 8.Nxd4 
Bb7 9.Bf3 d6 10.Re1 Be7 *

[Event "0xc99576b3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 Nbd7 7.Bb2 e5 8.dxe5 
Ng4 9.Nbd2 Ngxe5 *

[Event "0xc9a66cc8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B88"]
[Opening "Sicilian"]
[Variation "Sozin, Leonhardt variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3 Be7 8.Be3 
O-O 9.O-O Bd7 10.f4 Rc8 *

[Event "0xc9c03f2a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 a6 6.O-O Nc6 7.e3 Bd7 8.Nc3 Bd6 
9.Qe2 b5 10.e4 e5 *

[Event "0xc9c058b8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B07"]
[Opening "Pirc"]
[Variation "Sveshnikov system"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.g3 Bg7 5.Bg2 O-O 6.Nge2 Nc6 7.O-O e5 8.dxe5 
dxe5 9.Bg5 Qxd1 10.Rfxd1 Ne8 *

[Event "0xc9e1ef21"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.h4 Be7 8.Rg1 d5 
9.Bf4 a6 10.exd5 Nxd5 *

[Event "0xc9e408f9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni defence"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.Bf4 Bg7 8.Qa4+ 
Bd7 9.Qb3 b5 10.Bxd6 Qb6 *

[Event "0xc9f577f9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, Rubinstein variation"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 c5 5.Nf3 a6 6.O-O Nf6 7.a4 Nc6 8.Qe2 cxd4
9.Rd1 Be7 10.exd4 O-O *

[Event "0xca0d056c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A34"]
[Opening "English"]
[Variation "symmetrical, Rubinstein system"]

1.c4 c5 2.Nc3 Nf6 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nc7 6.Nf3 Nc6 7.O-O e5 8.b3 
Be7 9.Bb2 O-O *

[Event "0xca49aeae"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.Be3 Ng4 8.Bg5 f6 
9.Bc1 exd4 *

[Event "0xca646c7e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B60"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer"]

1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.Nc3 cxd4 5.Nxd4 Nc6 6.Bg5 Qb6 7.Nb3 e6 8.Qd2 
a6 9.h4 Be7 10.h5 h6 *

[Event "0xca6ed4ed"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.a3 Be7 
9.cxd5 exd5 10.b4 Ne4 *

[Event "0xca8fdf84"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.Bd2 dxc4
9.Bxc4 c5 10.a3 Ba5 *

[Event "0xcadbea1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.Nge2 Nc6 8.d5 Ne5 
9.Nc1 e6 10.Be2 exd5 *

[Event "0xcaf9f143"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C80"]
[Opening "Ruy Lopez"]
[Variation "open, Bernstein variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.Nbd2 Nc5 10.c3 d4 *

[Event "0xcb271d19"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "Charousek (Petrosian) variation"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qd2 
dxc4 9.Bxc4 Nd7 10.O-O c5 *

[Event "0xcb33b875"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.O-O c6 6.b3 O-O 7.Bb2 Ne4 8.Nbd2 
Nxd2 9.Qxd2 Bf5 10.Nh4 Be6 *

[Event "0xcb48b4a6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B08"]
[Opening "Pirc"]
[Variation "classical system, 5.Be2"]

1.e4 g6 2.d4 Bg7 3.Nf3 d6 4.Be2 Nf6 5.Nc3 O-O 6.O-O Nc6 7.d5 Nb8 8.Bg5 c6 
9.h3 Nbd7 10.Re1 a6 *

[Event "0xcb7a7dd6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E18"]
[Opening "Queen's Indian"]
[Variation "old main line, 7.Nc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 O-O 7.O-O Ne4 8.Nxe4 
Bxe4 9.Ne1 Bxg2 10.Nxg2 d5 *

[Event "0xcb7ac50c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B10"]
[Opening "Caro-Kann"]
[Variation "closed (Breyer) variation"]

1.e4 c6 2.d3 d5 3.Nd2 e5 4.Ngf3 Bd6 5.g3 Nf6 6.Bg2 O-O 7.O-O Re8 8.b3 a5 
9.a3 Nbd7 10.Bb2 dxe4 *

[Event "0xcbaba1aa"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 c5 7.d5 h6 8.Bf4 a6 9.
Qd2 *

[Event "0xcbb5dd61"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B93"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Qc7 7.Bd3 g6 8.a4 Bg7 
9.Nf3 Nc6 10.O-O O-O *

[Event "0xcbc7f978"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni defence"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.Bf4 a6 8.e4 Bg7 
9.Qa4+ Bd7 10.Qb3 Bc8 *

[Event "0xcbc85027"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "Charousek (Petrosian) variation"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qc2 c5
9.dxc5 dxc4 10.Bxc4 Qa5 *

[Event "0xcbe04d4b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D73"]
[Opening "Neo-Gruenfeld, 5.Nf3"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.c4 dxc4 6.Qa4+ Nfd7 7.Na3 c5 8.dxc5 
Nc6 9.O-O Nxc5 10.Qxc4 Ne6 *

[Event "0xcbe166aa"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C11"]
[Opening "French"]
[Variation "Burn variation"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4 5.Nxe4 Nbd7 6.Nf3 Be7 7.Nxf6+ Nxf6 8.
Bd3 c5 9.dxc5 Qa5+ 10.c3 Qxc5 *

[Event "0xcbe7b5ca"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B76"]
[Opening "Sicilian"]
[Variation "dragon, Yugoslav attack, Rauser variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 
O-O 9.O-O-O Be6 10.Kb1 Qa5 *

[Event "0xcbec41b6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Qa4+ Bd7 6.Qxc4 Bc6 7.Bg2 Nbd7 8.Nc3
Nb6 9.Qd3 Bb4 10.O-O O-O *

[Event "0xcbf84d55"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C77"]
[Opening "Ruy Lopez"]
[Variation "Morphy defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d4 exd4 6.e5 Ne4 7.O-O Be7 8.Nxd4 
O-O 9.Nf5 d5 10.Bxc6 bxc6 *

[Event "0xcc024107"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C02"]
[Opening "French"]
[Variation "advance, Wade variation"]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Qb6 5.Nf3 Bd7 6.Be2 Bb5 7.c4 Bxc4 8.Bxc4 Qb4+
9.Nbd2 dxc4 10.a3 Qb5 11.Qe2 cxd4 *

[Event "0xcc0a76f7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B71"]
[Opening "Sicilian"]
[Variation "dragon, Levenfish; Flohr variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.f4 Nbd7 7.Be2 Bg7 8.O-O 
O-O 9.Kh1 a6 10.Bf3 e5 *

[Event "0xcc13175a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 c5 7.Qe2 a6 8.dxc5 
Bxc5 9.O-O O-O 10.e4 b5 *

[Event "0xcc23b65e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E35"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation, 5.cd ed"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Bg5 h6 7.Bxf6 Qxf6 8.a3 
Bxc3+ 9.Qxc3 c6 10.e3 O-O *

[Event "0xcc5a3d85"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A00"]
[Opening "Polish (Sokolsky) opening"]

1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 *

[Event "0xcc5a95c9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn"]
[Variation "Torre attack"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 h6 4.Bh4 g5 5.Bg3 Ne4 6.Nbd2 Nxg3 7.hxg3 Bg7 8.c3 
d6 *

[Event "0xcc78e1c5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 a6 6.c4 Be7 *

[Event "0xccb98f05"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C14"]
[Opening "French"]
[Variation "classical, Alapin variation"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7 7.Nb5 Nb6 8.c3 
a6 9.Na3 c5 10.f4 cxd4 *

[Event "0xccf07976"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.O-O Nc6 6.Nxd4 Bc5 7.Nb3 Bb6 8.c4 
d5 9.cxd5 Nxd5 10.Nc3 Nxc3 *

[Event "0xccf23884"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 Nge7 7.Bf4 Ng6 8.Nxc6
bxc6 9.Bd6 Qb6 10.O-O c5 *

[Event "0xcd536775"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C64"]
[Opening "Ruy Lopez"]
[Variation "classical (Cordel) defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.O-O Nd4 5.Nxd4 Bxd4 6.c3 Bb6 7.d4 c6 8.Ba4 
d6 9.Na3 Bc7 10.f4 exd4 *

[Event "0xcd555585"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B23"]
[Opening "Sicilian"]
[Variation "Grand Prix attack"]

1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bb5 Nd4 6.O-O Nxb5 7.Nxb5 d6 8.d3 
Nf6 9.e5 dxe5 10.fxe5 Nd5 *

[Event "0xcd8615ac"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A05"]
[Opening "Reti"]
[Variation "King's Indian attack"]

1.Nf3 Nf6 2.g3 g6 3.b3 Bg7 4.Bb2 O-O 5.Bg2 d6 6.d4 *

[Event "0xcd9e3c54"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B18"]
[Opening "Caro-Kann"]
[Variation "classical variation"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.Bc4 e6 7.N1e2 Bd6 8.Nf4 
Nf6 9.O-O Qc7 10.Nxg6 hxg6 *

[Event "0xcd9fe60a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.e3 O-O 8.Bd3 *

[Event "0xcdaffda2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Bg2 Nc6 6.Qa4 Bb4+ 7.Bd2 Bd6 8.Bc3 *

[Event "0xcdb0c797"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.g3 dxc4 6.Qxc4 b5 7.Qb3 Nbd7 8.Bg2 
Bb7 9.Bf4 Qa5+ 10.Bd2 Qb6 *

[Event "0xcdb7ab07"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B94"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.Bg5"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 Nc6 7.Qd2 Nxd4 8.Qxd4
Qa5 9.f4 e6 10.O-O-O Be7 *

[Event "0xcdba3c4c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B68"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be7"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 Be7 10.f5 Nxd4 *

[Event "0xcdf2640a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 c5 6.dxc5 Qa5 7.Rc1 dxc4 8.Qa4+ 
Qxa4 9.Nxa4 Na6 10.e3 Bd7 *

[Event "0xcdf6bcc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Bb4+ 5.Bd2 Be7 6.Bg2 O-O 7.O-O c6 8.Qc2 b6 
9.b3 Nbd7 10.Rd1 Bb7 *

[Event "0xce1d6378"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C82"]
[Opening "Ruy Lopez"]
[Variation "open, St. Petersburg variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.c3 Bc5 10.Nbd2 O-O *

[Event "0xce20922b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A62"]
[Opening "Benoni"]
[Variation "fianchetto variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 c5 4.d5 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7 8.Bg2 O-O 
9.O-O Re8 10.Bf4 Bg4 *

[Event "0xce23e1ea"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A08"]
[Opening "Reti"]
[Variation "King's Indian attack, French variation"]

1.Nf3 d5 2.g3 c5 3.Bg2 Nc6 4.O-O e6 5.d3 Nf6 6.Nbd2 Be7 7.Re1 O-O 8.e4 Qc7
9.e5 Nd7 *

[Event "0xce31efec"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B96"]
[Opening "Sicilian"]
[Variation "Najdorf, Polugayevsky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 b5 8.a3 Nbd7 
9.Qf3 Bb7 10.O-O-O Qb6 *

[Event "0xce3d01c3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B92"]
[Opening "Sicilian"]
[Variation "Najdorf, Opovcensky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O 
O-O 9.Be3 b6 10.f3 Be6 *

[Event "0xce48bba3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C17"]
[Opening "French"]
[Variation "Winawer, advance, 5.a3"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Ba5 6.b4 cxd4 7.Nb5 Bc7 8.f4 Ne7 9.
Nf3 Bd7 10.Bd3 Bxb5 *

[Event "0xce84f4da"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.Qd2 
Nbd7 9.f4 Qc7 10.f5 Bc4 *

[Event "0xcea48d2e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Qc7 7.Bg2 Nf6 8.O-O 
Be7 9.b3 Nxd4 10.Qxd4 d6 *

[Event "0xceaa4ca9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A29"]
[Opening "English"]
[Variation "four knights, kingside fianchetto"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 Bc5 5.Bg2 d6 6.d3 O-O 7.O-O h6 8.a3 a6 9.
b4 Ba7 *

[Event "0xcec2685"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B93"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 Qc7 7.Be2 e5 8.Nb3 Be6
9.f5 Bc4 10.Bxc4 Qxc4 *

[Event "0xced060be"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Nxc6 bxc6 7.Bd3 d5 8.O-O 
Nf6 9.Re1 Bb7 10.Bd2 Be7 *

[Event "0xceedfe30"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B63"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 h6 8.Bxf6 
gxf6 9.Rd1 a6 10.Be2 h5 *

[Event "0xcefaf8fb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C77"]
[Opening "Ruy Lopez"]
[Variation "four knights (Tarrasch) variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.Nc3 d6 6.d4 Bd7 7.Bxc6 Bxc6 8.Qe2 
exd4 9.Nxd4 Bd7 10.O-O Be7 *

[Event "0xcf2679ce"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Qf3 Qb6 8.a3 Nc6 
9.Nxc6 bxc6 10.b3 Bb7 *

[Event "0xcf26e4db"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 dxc4 7.e4 c5 8.dxc5 
Qa5 9.e5 Nh5 10.Be3 Nc6 *

[Event "0xcf54d216"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 e6 8.Qd2 
h6 9.Nf3 exd5 10.e3 a5 *

[Event "0xcf620f98"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.cxd5 cxd5 8.Ne5 
Nc6 9.Nc3 Bf5 10.Bg5 Nxe5 *

[Event "0xcf8803e8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.Nc3 d5 7.cxd5 cxd5 8.Ne5 e6
9.Bg5 Qb6 10.Qd2 Nfd7 *

[Event "0xcf8c559b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.e3 O-O 8.Rc1 c5 9.
cxd5 cxd4 10.Bxf6 Bxf6 *

[Event "0xcf90be50"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A02"]
[Opening "Bird"]
[Variation "From gambit, Lasker variation"]

1.f4 e5 2.fxe5 d6 3.exd6 Bxd6 4.Nf3 g5 *

[Event "0xd01ff8b8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B40"]
[Opening "Sicilian"]
[Variation "Anderssen variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Nxc6 bxc6 7.e5 Nd5 8.Ne4
Qc7 9.f4 Qa5+ 10.c3 Be7 *

[Event "0xd07e1309"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3 Ng4 8.Bg5 f6 
9.Bh4 Nc6 10.d5 Ne7 *

[Event "0xd0ceca3c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A90"]
[Opening "Dutch defence"]
[Variation "Dutch-Indian (Nimzo-Dutch) variation"]

1.d4 e6 2.c4 f5 3.g3 Nf6 4.Bg2 Bb4+ 5.Bd2 Bxd2+ 6.Qxd2 O-O 7.Nc3 d6 8.Nf3 
Nc6 9.Rd1 Qe7 10.d5 Ne5 *

[Event "0xd0fe813c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.cxd5 
exd5 9.Ne5 Nbd7 10.Qa4 Bd6 *

[Event "0xd13abd55"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A07"]
[Opening "Reti"]
[Variation "King's Indian attack (Barcza system)"]

1.Nf3 d5 2.g3 c6 3.Bg2 Bg4 4.h3 Bxf3 5.Bxf3 Nd7 6.d3 e6 7.Nd2 Bd6 8.e4 Ne7
9.d4 Qb6 *

[Event "0xd14bdf1e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 d5 6.c4 e5 7.Nb3 d4 8.e3 Bg4 
9.f3 Be6 10.exd4 Bxc4 *

[Event "0xd18101b7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 e6 8.Nf3 
exd5 9.e3 O-O 10.b4 Be6 *

[Event "0xd18bb2b6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A01"]
[Opening "Nimzovich-Larsen attack"]
[Variation "modern variation"]

1.b3 e5 2.Bb2 Nc6 3.e3 d5 4.Bb5 Bd6 5.Nf3 f6 6.c4 a6 7.cxd5 axb5 8.dxc6 
bxc6 9.Qc2 Ne7 10.Nc3 f5 *

[Event "0xd198ea90"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 Nc6 5.O-O cxd4 6.Nxd4 Bc5 7.Nb3 Bb6 8.c4 
d5 9.cxd5 Nxd5 10.Na3 O-O *

[Event "0xd2357c78"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Qf3 Qb6 8.a3 Nc6 
9.Nxc6 bxc6 10.b3 Be7 *

[Event "0xd23c56a6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E35"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation, 5.cd ed"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Bg5 h6 7.Bh4 g5 8.Bg3 
Ne4 9.e3 Be6 10.Bd3 Nxg3 *

[Event "0xd252d123"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Bxd2+ 7.Qxd2 O-O 8.O-O
c5 9.Nc3 cxd4 10.Qxd4 Nc6 *

[Event "0xd27041d0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D44"]
[Opening "QGD semi-Slav"]
[Variation "anti-Meran gambit"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 Nf6 5.Bg5 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.
Nxg5 hxg5 10.Bxg5 Be7 *

[Event "0xd27c60a8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B92"]
[Opening "Sicilian"]
[Variation "Najdorf, Opovcensky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O 
O-O 9.Be3 b5 10.a4 Bb7 *

[Event "0xd280eb16"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 Nc6 5.c4 d5 6.cxd5 *

[Event "0xd2c291d0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A48"]
[Opening "King's Indian"]
[Variation "London system"]

1.d4 Nf6 2.Nf3 g6 3.Bf4 Bg7 4.Nbd2 O-O 5.e3 d6 6.h3 Nbd7 7.Bc4 Qe8 8.O-O 
e5 9.dxe5 dxe5 10.Bh2 Qe7 11.e4 Nh5 12.Qe2 Nc5 *

[Event "0xd312b38c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B89"]
[Opening "Sicilian"]
[Variation "Sozin, 7.Be3"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Be3 a6 8.Bb3 
Qc7 9.O-O Na5 10.f4 b5 *

[Event "0xd32b7bde"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B93"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.f4"]

1.e4 c5 2.Nf3 d6 3.Nc3 Nf6 4.d4 cxd4 5.Nxd4 a6 6.f4 Nbd7 7.a4 b6 8.Be2 Bb7
9.Bf3 e5 10.Nf5 Qc7 *

[Event "0xd3643628"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B31"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (with ...g6, without ...d6)"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.Bxc6 dxc6 5.d3 Bg4 6.Nbd2 Bg7 7.O-O Nf6 8.h3 
Bxf3 9.Qxf3 O-O 10.Qe2 e5 *

[Event "0xd3832ee"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 c6 7.Bb2 Qa5 8.Qd2 Qh5 
9.Qg5 Qxg5 10.Nxg5 d5 *

[Event "0xd3b8a70b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O 
Bd6 9.h3 Bf4 10.Qf3 Bxe3 *

[Event "0xd3b8fea2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C92"]
[Opening "Ruy Lopez"]
[Variation "closed, Flohr-Zaitsev system (Lenzerheide variation)"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 
9.h3 Bb7 10.d4 Re8 *

[Event "0xd3be11e2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.O-O d5 7.Nbd2 Bf5 8.b3 Ne4 
9.Bb2 Qd7 10.Re1 f6 *

[Event "0xd3c6a604"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 c5 4.d5 Nf6 5.Nc3 e6 6.Bxc4 exd5 7.Nxd5 Be7 8.Nxf6+
Bxf6 9.Qxd8+ Bxd8 10.Be3 Be7 *

[Event "0xd3ed4652"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni defence"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.h3 Bg7 8.e4 O-O 
9.Bd3 Na6 10.O-O Nb4 *

[Event "0xd3ee9fc5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 a6 7.Nge2 c6 8.Qd2 b5 9.
Bh6 e5 10.Bxg7 Kxg7 *

[Event "0xd414453b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 e6 5.Bxc4 c5 6.O-O Nf6 7.Bd3 cxd4 8.exd4 
Be7 9.Nc3 O-O 10.Ne5 Nc6 *

[Event "0xd4159c71"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B40"]
[Opening "Sicilian"]
[Variation "Anderssen variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Ndb5 Bb4 7.a3 Bxc3+ 8.
Nxc3 d5 9.Bd3 d4 10.Ne2 e5 *

[Event "0xd416bdef"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
Qc7 9.Nbd2 Nbd7 10.Nb3 Bd6 *

[Event "0xd41c7a64"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.e3 f5 5.Bd3 Bd6 6.O-O Nf6 7.b3 Qe7 8.a4 O-O 9.
Ba3 Bxa3 10.Nxa3 a5 *

[Event "0xd42011c7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "Charousek (Petrosian) variation"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qc2 
Nc6 9.a3 a6 10.Rd1 Ne7 *

[Event "0xd4536c45"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B52"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky attack, Sokolsky variation"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 Nc6 6.d4 cxd4 7.Nxd4 e6 8.
O-O Nf6 9.Nc3 Be7 10.Be3 O-O *

[Event "0xd494fc0d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B40"]
[Opening "Sicilian"]
[Variation "Anderssen variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Ndb5 Bb4 7.a3 Bxc3+ 8.
Nxc3 d5 9.exd5 Nxd5 10.Nxd5 exd5 *

[Event "0xd4a89a58"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.Be3 Ng4 8.Bg5 f6 
9.Bc1 Nc6 10.O-O Kh8 *

[Event "0xd4b1efa3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 c6 7.Bd3 Nbd7 8.Nge2 
Nh5 9.Bxe7 Qxe7 10.Qd2 g6 *

[Event "0xd4bf632a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.c3 cxd4 7.cxd4 Be7 8.Bg5 
O-O 9.Qd3 Qb6 10.Nc3 b4 *

[Event "0xd4c9fb11"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C81"]
[Opening "Ruy Lopez"]
[Variation "open, Howell attack"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.Qe2 Be7 10.Rd1 O-O *

[Event "0xd4d02a62"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E18"]
[Opening "Queen's Indian"]
[Variation "old main line, 7.Nc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Bd2 f5 
9.Qc2 Nxd2 10.Qxd2 Bb4 *

[Event "0xd4e3a2d4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ Bc6 8.Qc2 
dxc4 9.e4 b5 10.Rd1 *

[Event "0xd4f0af8f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D98"]
[Opening "Gruenfeld"]
[Variation "Russian, Smyslov variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 
Nfd7 9.Rd1 Nb6 10.Qb3 e6 *

[Event "0xd507d8f5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B10"]
[Opening "Caro-Kann"]
[Variation "closed (Breyer) variation"]

1.e4 c6 2.d3 d5 3.Nd2 e5 4.Ngf3 Bd6 5.d4 exd4 6.exd5 Nf6 7.dxc6 Nxc6 8.Be2
O-O 9.O-O Re8 10.Nb3 Bg4 *

[Event "0xd5505002"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C88"]
[Opening "Ruy Lopez"]
[Variation "closed, anti-Marshall 8.a4"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.a4 Bb7
9.d3 d6 10.Bd2 Nd7 *

[Event "0xd55dfc24"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D98"]
[Opening "Gruenfeld"]
[Variation "Russian, Smyslov variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 
Nfd7 9.Rd1 Nc6 10.Be2 Bxf3 *

[Event "0xd59c5670"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.h4 Nc6 8.Rg1 h5 
9.g5 Ng4 10.Be2 d5 *

[Event "0xd5d65f0e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B54"]
[Opening "Sicilian"]
[Variation "Prins (Moscow) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3 e6 6.c4 Be7 7.Nc3 O-O 8.Be2 b6 
9.O-O Bb7 10.b3 Nc6 *

[Event "0xd5e6b425"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D11"]
[Opening "QGD Slav"]
[Variation "4.e3"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 Nbd7 6.O-O dxc4 7.Bxc4 b5 8.Bd3 a6
9.e4 c5 10.d5 e5 *

[Event "0xd5f64bd4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.Nge2 Nc6 8.d5 Ne5 
9.Nf4 a6 10.a4 e6 *

[Event "0xd61c8217"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.Nf3 Qf5 7.Qxf5 exf5 8.a3
Bd6 9.Nb5 Be6 10.Nxd6+ cxd6 *

[Event "0xd6201f54"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.Bg5 h6 6.Bh4 dxc4 7.Qxc4 b5 8.Qc2 Bb7
9.e4 *

[Event "0xd635899a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A70"]
[Opening "Benoni"]
[Variation "classical with e4 and Nf3"]

1.d4 Nf6 2.c4 e6 3.Nc3 c5 4.d5 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Bd3 O-O 
9.h3 Na6 10.O-O Nc7 *

[Event "0xd6517ad2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.b3 Bg7 5.Bb2 O-O 6.Nf3 d5 7.O-O c6 8.c4 Be6 9.
Ng5 Bf7 10.Nc3 Qe8 *

[Event "0xd6568782"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A95"]
[Opening "Dutch"]
[Variation "stonewall with Nc3"]

1.Nf3 e6 2.g3 f5 3.Bg2 Nf6 4.O-O Be7 5.c4 O-O 6.d4 c6 7.Nc3 d5 8.Ne5 Nbd7 
9.Nxd7 Bxd7 10.Qd3 Qe8 *

[Event "0xd65aa671"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B91"]
[Opening "Sicilian"]
[Variation "Najdorf, Zagreb (fianchetto) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3 e5 7.Nde2 Nbd7 8.Bg2 
b5 9.O-O Bb7 10.Nd5 Nxd5 *

[Event "0xd65c77c5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Nf6 *

[Event "0xd6636ba0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A62"]
[Opening "Benoni"]
[Variation "fianchetto variation"]

1.d4 Nf6 2.c4 e6 3.g3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.Bg2 Bg7 8.Nf3 O-O 
9.O-O Re8 10.a4 Nbd7 *

[Event "0xd6680126"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.e3 O-O 8.Bxf6 *

[Event "0xd67865fc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.cxd5 Nxd5 8.Nc3 
Be6 *

[Event "0xd68618c9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A88"]
[Opening "Dutch"]
[Variation "Leningrad, main variation with c6"]

1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.O-O d6 7.Nc3 c6 8.Rb1 Ne4 
9.Qb3 Kh8 10.Rd1 Nxc3 *

[Event "0xd68f5158"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.Nf3 Bg7 5.O-O O-O 6.b3 d6 7.Bb2 Qe8 8.c4 c6 9.
Nbd2 h6 10.Qc2 g5 *

[Event "0xd692173"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A50"]
[Opening "Queen's Indian accelerated"]

1.d4 Nf6 2.c4 b6 3.Nc3 Bb7 4.f3 d5 5.cxd5 Nxd5 6.e4 Nxc3 7.bxc3 e6 8.Bb5+ 
c6 9.Bd3 Be7 10.Ne2 O-O *

[Event "0xd69e44b4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.Be2 a6 8.f4 Qc7
9.Qd2 *

[Event "0xd6fdae4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 d5 6.O-O c6 7.cxd5 Nxd5 8.h3 Nd7
*

[Event "0xd70197c5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A90"]
[Opening "Dutch defence"]

1.d4 e6 2.c4 f5 3.g3 Nf6 4.Bg2 d5 5.Nd2 c6 6.Nh3 Bd6 7.O-O O-O 8.Nf3 b6 9.
Bf4 Ba6 10.cxd5 cxd5 *

[Event "0xd706250d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.h4 Nc6 8.Rg1 h5 
9.g5 Ng4 10.Be2 Qb6 *

[Event "0xd7089d44"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Nc3 Nbd7 7.a4 a5 8.e4 c6 *

[Event "0xd73b17cc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.O-O d5 6.Nxd4 Be7 7.c4 O-O 8.cxd5 
Nxd5 9.Nc3 Nxc3 10.bxc3 e5 *

[Event "0xd76912a0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B56"]
[Opening "Sicilian"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g3 g6 7.Nde2 Bg7 8.Bg2 
O-O 9.O-O Bd7 10.Nf4 Ne5 *

[Event "0xd78b7da9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.O-O c6 6.Nbd2 O-O 7.c4 Ne4 8.e3 Nxd2
9.Nxd2 dxc4 10.Nxc4 Be6 *

[Event "0xd7961778"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Qc7 7.Bg2 d6 8.O-O Bd7
9.Re1 Be7 10.Nxc6 Bxc6 *

[Event "0xd7b7e58a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B92"]
[Opening "Sicilian"]
[Variation "Najdorf, Opovcensky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 g6 7.O-O Bg7 8.Bg5 
O-O 9.f4 Nc6 10.Nb3 Bd7 *

[Event "0xd7bcca98"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn"]
[Variation "Torre attack"]

1.d4 Nf6 2.Nf3 e6 3.Bg5 c5 4.c3 Be7 5.Nbd2 cxd4 6.cxd4 d5 7.e3 O-O 8.Bd3 
Nc6 *

[Event "0xd7ce637f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C58"]
[Opening "two knights defence"]
[Variation "Yankovich variation"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.d3 h6 7.Nf3 e4 8.Qe2 
Nxc4 9.dxc4 Bc5 10.Nfd2 O-O *

[Event "0xd7eba18a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ Qd7 8.Qxd7+ 
Nbxd7 9.Nb5 Bd8 10.cxd5 Nxd5 *

[Event "0xd84dd309"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.O-O c6 6.c4 O-O 7.cxd5 cxd5 8.Ne5 
Nc6 9.Nc3 e6 10.Nxc6 bxc6 *

[Event "0xd859880f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D53"]
[Opening "QGD"]
[Variation "4.Bg5 Be7"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 h6 6.Bh4 O-O 7.Rc1 b6 8.cxd5 Nxd5
9.Nxd5 exd5 10.Bxe7 Qxe7 *

[Event "0xd85e7aa8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.Nf3 Qf5 7.Qb3 c5 8.e3 
O-O 9.a3 Ba5 10.dxc5 Qxc5 *

[Event "0xd85efb3f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D47"]
[Opening "QGD semi-Slav"]
[Variation "Meran, Wade variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 Nbd7 6.Nc3 dxc4 7.Bxc4 b5 8.Bd3 
Bb7 9.e4 b4 10.Na4 c5 *

[Event "0xd87b30ab"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B20"]
[Opening "Sicilian"]
[Variation "Steinitz variation"]

1.e4 c5 2.g3 d5 3.exd5 Qxd5 4.Nf3 Bg4 5.Bg2 Qe6+ 6.Kf1 Nc6 7.h3 Bh5 8.d3 
Qd7 9.Na3 e6 10.Nc4 Nf6 *

[Event "0xd89c6951"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E62"]
[Opening "King's Indian"]
[Variation "fianchetto, Kavalek (Bronstein) variation"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.Nc3 d6 7.O-O Qa5 8.h3 Be6 
9.d5 cxd5 10.Nd4 Bd7 *

[Event "0xd8bc7eac"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A87"]
[Opening "Dutch"]
[Variation "Leningrad, main variation"]

1.d4 f5 2.Nf3 Nf6 3.c4 g6 4.g3 Bg7 5.Bg2 O-O 6.O-O d6 7.Nc3 Qe8 8.b3 Nc6 
9.Nb5 Qd8 10.d5 Ne5 *

[Event "0xd8c74cd9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.Nf3 e6 3.g3 b6 4.Bg2 Bb7 5.c4 Bb4+ 6.Bd2 Bxd2+ 7.Qxd2 O-O 8.O-O
Nc6 9.Nc3 Na5 10.Qd3 d5 *

[Event "0xd8d0d9ff"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 b5 8.Nxc6 
Qxc6 9.e5 *

[Event "0xd90adabc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 c5 7.Bxb4 cxb4 8.O-O 
a5 9.Ne1 Bxg2 10.Nxg2 O-O *

[Event "0xd90ed17"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B66"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.Be2 
Be7 9.O-O O-O 10.Nb3 b5 *

[Event "0xd913449e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Yates variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 a5 7.O-O O-O 8.Bg5 Be7
9.Qc2 Be4 10.Qd2 h6 *

[Event "0xd917ab39"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A22"]
[Opening "English"]
[Variation "Bremen, Smyslov system"]

1.c4 e5 2.Nc3 Nf6 3.g3 Bb4 4.Bg2 O-O 5.e4 Bxc3 6.dxc3 *

[Event "0xd92b9eab"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Yates variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 a5 7.O-O O-O 8.Qc2 *

[Event "0xd9508874"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E06"]
[Opening "Catalan"]
[Variation "closed, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Be7 5.Bg2 O-O 6.O-O dxc4 7.Qc2 a6 8.Qxc4 b5
9.Qc2 Bb7 10.Bf4 Nd5 *

[Event "0xd9595c97"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 Nc6 7.g5 Nd7 8.Be3 Be7
9.Rg1 O-O 10.Qd2 a6 *

[Event "0xd9618081"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "QGD Slav"]
[Variation "Semmering variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nbd2 Nbd7 6.Bd3 c5 *

[Event "0xd990fe71"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D45"]
[Opening "QGD semi-Slav"]
[Variation "Stoltz variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nc3 Nbd7 6.Qc2 Bd6 7.Bd3 O-O 8.O-O h6 
9.Rd1 Qe7 10.h3 *

[Event "0xd9935b52"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D28"]
[Opening "QGA"]
[Variation "classical, 7...b5"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 c5 5.Nf3 a6 6.O-O Nf6 7.Qe2 b5 8.Bd3 cxd4
9.exd4 Nc6 10.Bg5 Be7 *

[Event "0xd997c1cb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B73"]
[Opening "Sicilian"]
[Variation "dragon, classical, 8.O-O"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O Nc6 8.Be3 
O-O 9.f4 Qb6 10.Na4 Qa5 *

[Event "0xd9e93feb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.O-O c6 6.Nbd2 O-O 7.c4 Bf5 8.b3 Ne4 
9.Bb2 Qa5 10.Qe1 Nxd2 *

[Event "0xd9f50821"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B40"]
[Opening "Sicilian"]
[Variation "Anderssen variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Nxc6 bxc6 7.e5 Nd5 8.Ne4
Qa5+ 9.c3 Ba6 10.Bd3 Be7 *

[Event "0xda1c1db9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 c6 7.Bb2 a5 8.a4 Na6 9.
Nbd2 Bd7 10.e4 b5 *

[Event "0xda1cb94f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E36"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation, 5.a3"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.a3 Bxc3+ 6.Qxc3 dxc4 7.Qxc4 b6 8.Nf3
Ba6 9.Qa4+ *

[Event "0xda32fd2a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C07"]
[Opening "French"]
[Variation "Tarrasch, open variation"]

1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 Qxd5 5.Ngf3 cxd4 6.Bc4 Qd6 7.O-O Nf6 8.Nb3
Nc6 9.Nbxd4 Nxd4 10.Nxd4 Bd7 *

[Event "0xda4ed0eb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A62"]
[Opening "Benoni"]
[Variation "fianchetto variation"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.g3 g6 7.Bg2 Bg7 8.Nf3 O-O 
9.O-O Na6 10.Nd2 Rb8 *

[Event "0xda59074c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, Benko variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Qb6 7.Nb3 e6 8.O-O 
Be7 9.Bg5 O-O 10.Kh1 a6 *

[Event "0xda97774f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 c5 7.d5 e6 8.Qd2 h6 9.
Be3 exd5 10.cxd5 Re8 *

[Event "0xdad2f1d5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B61"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Larsen variation, 7.Qd2"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 Bd7 7.Qd2 Rc8 8.Nb3 
h6 9.Bxf6 gxf6 10.Bd3 Ne5 *

[Event "0xdadb0531"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B89"]
[Opening "Sicilian"]
[Variation "Sozin, 7.Be3"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Be3 a6 8.Bb3 
Be7 9.f4 O-O 10.Qf3 Nxd4 *

[Event "0xdaff3389"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B93"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.f4"]

1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.Nc3 cxd4 5.Nxd4 a6 6.f4 Qc7 7.a4 g6 8.Bd3 Bg7 
9.Nf3 Bg4 10.O-O O-O *

[Event "0xdb00b2b5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D55"]
[Opening "QGD"]
[Variation "Neo-orthodox variation, 7.Bxf6"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bxf6 Bxf6 8.Qc2 
Na6 9.Rd1 c5 10.dxc5 Qa5 *

[Event "0xdb12100a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C10"]
[Opening "French"]
[Variation "Paulsen variation"]

1.e4 e6 2.d4 d5 3.Nc3 Be7 4.Bd3 Nc6 5.Nf3 Nb4 6.Bb5+ c6 7.Be2 dxe4 8.Nxe4 
Nf6 9.Nxf6+ Bxf6 10.O-O O-O *

[Event "0xdb1447d1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A62"]
[Opening "Benoni"]
[Variation "fianchetto variation"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7 8.Bg2 O-O 
9.O-O Na6 10.Bf4 Nc7 *

[Event "0xdb19186f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.Be2"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O O-O 8.f4 a6
9.Kh1 Nc6 10.Nxc6 bxc6 *

[Event "0xdb3b992c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, Tal variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Nc6 7.Be3 Be7 8.Qf3 
O-O 9.O-O-O Nxd4 *

[Event "0xdb4272bb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A88"]
[Opening "Dutch"]
[Variation "Leningrad, main variation with c6"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.Nf3 Bg7 5.O-O O-O 6.c4 d6 7.Nc3 c6 8.Qc2 Na6 
9.a3 Qe8 10.b4 e5 *

[Event "0xdb4a847b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B05"]
[Opening "Alekhine's defence"]
[Variation "modern variation, 4...Bg4"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 e6 6.O-O Be7 7.c4 Nb6 8.h3 Bxf3 
9.Bxf3 Nc6 10.Bxc6+ bxc6 *

[Event "0xdb943756"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B58"]
[Opening "Sicilian"]
[Variation "Boleslavsky, Louma variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 e5 7.Nxc6 bxc6 8.Qd3
Be7 9.Qg3 O-O 10.O-O Rb8 *

[Event "0xdbf8e661"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D11"]
[Opening "QGD Slav"]
[Variation "4.e3"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 Nbd7 6.O-O Bd6 7.Nc3 O-O 8.e4 dxc4
9.Bxc4 e5 10.h3 exd4 *

[Event "0xdc00ca91"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Re1 Nbd7 7.e4 e5 8.dxe5 
dxe5 9.Nbd2 Qe7 10.b3 Rd8 *

[Event "0xdc25b885"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A67"]
[Opening "Benoni"]
[Variation "Taimanov variation"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Bb5+ Nfd7
9.a4 O-O 10.Nf3 Nf6 *

[Event "0xdc58f990"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian"]
[Variation "dragon variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Bc4 Bg7 7.Bb3 Nbd7 8.Be3 
a6 9.f3 Nc5 10.Qd2 Nxb3 *

[Event "0xdc8a638a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B77"]
[Opening "Sicilian"]
[Variation "dragon, Yugoslav attack, 9...Bd7"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Bc4 
Bd7 9.Qd2 Nc6 10.h4 Ne5 *

[Event "0xdcc5124d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A28"]
[Opening "English"]
[Variation "four knights, Nimzovich variation"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e4 Bb4 5.d3 d6 6.g3 O-O 7.Bg2 Ne8 8.O-O Bxc3
9.bxc3 f5 *

[Event "0xdcd52944"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A03"]
[Opening "Bird's opening"]

1.f4 d5 2.Nf3 Nf6 3.g3 g6 4.Bg2 Bg7 5.O-O b6 6.d3 Bb7 7.c3 O-O 8.a4 c5 9.
Na3 Nc6 10.Bd2 a6 *

[Event "0xdcfd279"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E18"]
[Opening "Queen's Indian"]
[Variation "old main line, 7.Nc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Bd2 d5 
9.cxd5 exd5 10.Rc1 Nd7 *

[Event "0xdd023a92"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C45"]
[Opening "Scotch game"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Qf6 5.Nxc6 Bc5 6.Qd2 dxc6 7.Nc3 Bd4 8.
Bd3 Ne7 9.O-O Ng6 10.Kh1 Ne5 *

[Event "0xdd063b1e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C53"]
[Opening "Giuoco Piano"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d3 a6 6.Bb3 Ba7 7.Nbd2 O-O 8.Nc4 d5
9.exd5 Nxd5 10.O-O f6 *

[Event "0xdd3aad81"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 Nc6 5.O-O Qb6 6.dxc5 Bxc5 7.c4 Ne4 *

[Event "0xdd4e50d3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A80"]
[Opening "Dutch"]

1.d4 f5 2.Nf3 Nf6 3.g3 g6 4.Bg2 Bg7 5.O-O O-O 6.Nbd2 d6 7.c3 Nc6 8.b4 Qe8 
9.Qb3+ Kh8 10.d5 Nd8 *

[Event "0xddf10584"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D55"]
[Opening "QGD"]
[Variation "Neo-orthodox variation, 7.Bxf6"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bxf6 Bxf6 8.Qb3 c6
9.Rd1 Nd7 10.Bd3 b6 *

[Event "0xde10af26"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B05"]
[Opening "Alekhine's defence"]
[Variation "modern variation, 4...Bg4"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 e6 6.O-O Be7 7.c4 Nb6 8.Nc3 O-O 
9.exd6 cxd6 10.b3 d5 *

[Event "0xde1d8f23"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C45"]
[Opening "Scotch"]
[Variation "Mieses variation"]

1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Nf6 5.Nxc6 bxc6 6.e5 Qe7 7.Qe2 Nd5 8.c4
Nb6 9.Nc3 Qe6 10.Qe4 Ba6 *

[Event "0xde248be1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E35"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation, 5.cd ed"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Bg5 h6 7.Bh4 c5 8.dxc5 
g5 9.Bg3 Ne4 10.e3 Qf6 *

[Event "0xde5090a8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Bg2 a6 6.O-O Nc6 7.e3 Bd7 8.Qe2 b5 
9.a4 *

[Event "0xde634e0d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "QGD Slav"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nbd2 Nbd7 6.Bd3 Bd6 7.O-O O-O 8.e4 e5 
9.cxd5 cxd5 10.exd5 exd4 *

[Event "0xde707c30"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ Qd7 8.Qc2 
dxc4 9.e3 Bxf3 10.gxf3 b5 *

[Event "0xde766dd9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.Be3 c6 8.Qd2 Qe7 
9.d5 cxd5 *

[Event "0xde9114e2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.g5 hxg5 8.Bxg5 
Nc6 9.Qd2 Be7 10.O-O-O Nxd4 *

[Event "0xdeb0950b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B09"]
[Opening "Pirc"]
[Variation "Austrian attack, 6.Bd3"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Bd3 Nc6 7.e5 dxe5 8.dxe5 
Nd5 9.O-O Ndb4 10.Be4 f5 *

[Event "0xdec235fe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D37"]
[Opening "QGD"]
[Variation "4.Nf3"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qb3 c5
9.cxd5 cxd4 10.Nxd4 exd5 *

[Event "0xdefea5e7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 h6 7.Be3 c5 8.dxc5 Qa5 
9.Bd2 Qxc5 10.Nf3 Nc6 *

[Event "0xdf05f357"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C14"]
[Opening "French"]
[Variation "classical, Tarrasch variation"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.Bxe7 Qxe7 7.Bd3 O-O 8.Nce2
c5 9.c3 f6 10.f4 cxd4 *

[Event "0xdf0af09d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C41"]
[Opening "Philidor"]
[Variation "Improved Hanham variation"]

1.e4 d6 2.d4 Nf6 3.Nc3 e5 4.Nf3 Nbd7 5.g3 Be7 6.Bg2 O-O 7.O-O c6 8.a4 Re8 
9.h3 Bf8 10.Re1 Qc7 *

[Event "0xdf217353"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 O-O 7.a3 Be7 8.d5 
exd5 9.cxd5 Bc5 10.Na4 b6 *

[Event "0xdf24901d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "semi-Slav, Noteboom variation"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 5.a4 Bb4 6.e3 b5 7.Nd2 *

[Event "0xdf468cdf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 Nc6 5.O-O cxd4 6.Nxd4 Bc5 7.Nb3 Bb6 8.c4 
d5 9.cxd5 Nxd5 10.Na3 Ne5 *

[Event "0xdf65211d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C10"]
[Opening "French"]
[Variation "Rubinstein variation"]

1.d4 e6 2.e4 d5 3.Nd2 dxe4 4.Nxe4 Nd7 5.g3 Ngf6 6.Nxf6+ Nxf6 7.Bg2 c5 8.
Nf3 cxd4 9.Qxd4 Qxd4 10.Nxd4 Bc5 *

[Event "0xdf6b35af"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B05"]
[Opening "Alekhine's defence"]
[Variation "modern, Flohr variation"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 c6 6.Ng5 Bxe2 7.Qxe2 dxe5 8.dxe5
e6 9.O-O Be7 10.Ne4 O-O *

[Event "0xdf6e64d2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be3 Nf6 7.Bd3 d5 8.exd5 
exd5 9.Qe2 Be7 10.f3 O-O *

[Event "0xdf71840e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Re1 Nbd7 7.e4 e5 8.dxe5 
dxe5 9.b3 Nc5 10.Qxd8 Rxd8 *

[Event "0xdfd6770d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B08"]
[Opening "Pirc"]
[Variation "classical system, 5.Be2"]

1.e4 g6 2.d4 Bg7 3.Nf3 d6 4.Be2 Nf6 5.Nc3 O-O 6.O-O Nc6 7.d5 Nb8 8.h3 c6 
9.Re1 b5 10.dxc6 b4 *

[Event "0xdfe98a46"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.e3 O-O 8.Rc1 Nbd7 
9.cxd5 exd5 10.Be2 h6 *

[Event "0xdffb3003"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C15"]
[Opening "French"]
[Variation "Winawer (Nimzovich) variation"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.exd5 exd5 5.Bd3 Nc6 6.a3 Ba5 7.Be3 Nge7 8.Qh5 
Be6 9.Nf3 Bxc3+ 10.bxc3 Qd7 *

[Event "0xdffd29d2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.Bh4 Nxc3 7.bxc3 dxc4 8.
Qa4+ c6 9.Qxc4 Qa5 10.e3 Na6 *

[Event "0xe0556f14"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A62"]
[Opening "Benoni"]
[Variation "fianchetto variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.g3 Bg7 8.Bg2 O-O 
9.O-O Re8 10.Bf4 Ne4 *

[Event "0xe08cfccf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.O-O c6 6.b3 O-O 7.Bb2 a5 8.c4 a4 9.
e3 Ne4 10.Nfd2 Nc5 *

[Event "0xe0a4cb53"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D99"]
[Opening "Gruenfeld defence"]
[Variation "Smyslov, Yugoslav variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 O-O 7.e4 Bg4 8.Be3 
Nfd7 9.Qb3 c5 10.d5 Na6 *

[Event "0xe0b24631"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A44"]
[Opening "Semi-Benoni (`blockade variation')"]

1.d4 c5 2.d5 e5 3.e4 d6 4.Nc3 Be7 5.Nf3 Bg4 6.Be2 Bxf3 7.Bxf3 Na6 8.O-O 
Nc7 9.a4 Bg5 *

[Event "0xe0b4f8d3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 g6 4.c4 Bg7 5.Nc3 d6 6.Nh3 O-O 7.d5 Nbd7 8.O-O Ne5 
9.b3 c5 10.Qc2 a6 *

[Event "0xe0d754a0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bd3 Nc6 7.Be3 Be6 8.Nc3 
Qd7 9.Nf3 Bg4 *

[Event "0xe1139e97"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B52"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky attack, Sokolsky variation"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 e5 6.Nc3 Nc6 7.d3 g6 8.Nd5 
Nce7 9.O-O Bg7 10.Rb1 Nxd5 *

[Event "0xe11e9a15"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ Qd7 8.Qxd7+ 
Nbxd7 9.Nb5 Kd8 10.cxd5 Nxd5 *

[Event "0xe1708d51"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A89"]
[Opening "Dutch"]
[Variation "Leningrad, main variation with Nc6"]

1.Nf3 d6 2.d4 f5 3.g3 Nf6 4.Bg2 g6 5.O-O Bg7 6.c4 O-O 7.Nc3 Nc6 8.d5 Na5 
9.b3 Ne4 10.Nxe4 Bxa1 *

[Event "0xe1709254"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "modern exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.cxd5 Nxd5 6.e4 Nxc3 7.bxc3 c5 8.Rb1 
O-O 9.Be2 Nc6 10.d5 Ne5 *

[Event "0xe1a467e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.g3 Bd6 6.Bg2 Nbd7 7.O-O O-O 8.Nbd2 
Re8 9.b3 e5 10.cxd5 cxd5 *

[Event "0xe1b5ce7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D22"]
[Opening "QGA"]
[Variation "Alekhine defence"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 Bg4 5.Bxc4 e6 6.h3 Bh5 7.Nc3 Nd7 8.Be2 
Ngf6 9.e4 Bxf3 10.Bxf3 e5 *

[Event "0xe1d2f372"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C73"]
[Opening "Ruy Lopez"]
[Variation "modern Steinitz defence, Alapin variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.Bxc6+ bxc6 6.d4 f6 7.Nc3 Ne7 8.Be3 
a5 9.Qd2 Ng6 10.h4 h5 *

[Event "0xe21a62d7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bd3 Nc6 7.Ne2 Bg4 8.f3 
Be6 9.Nbc3 Qd7 10.Ne4 Bd5 *

[Event "0xe2326363"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be3 Qc7 7.Bd3 b5 8.Nxc6 
Qxc6 9.O-O Bb7 10.Kh1 Nf6 *

[Event "0xe256847c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E38"]
[Opening "Nimzo-Indian"]
[Variation "classical, 4...c5"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 Na6 6.a3 Bxc3+ 7.Qxc3 Nxc5 8.f3
d5 9.cxd5 b6 10.b4 Na4 *

[Event "0xe25b09f8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Bg2 c5 6.O-O Nc6 7.Ne5 Bd7 8.Nxc4 
cxd4 9.Bf4 Nd5 10.Nd6+ Bxd6 *

[Event "0xe25bcdd8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian"]
[Variation "Petrosian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.Qa4+ c6 8.cxd5 
Nxd5 9.Bxe7 Nxc3 10.Qxc6+ Nxc6 *

[Event "0xe2d3f4c7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B00"]
[Opening "King's pawn opening"]

1.e4 d6 2.d4 Nf6 3.Bd3 e5 4.c3 c6 5.Nf3 Qc7 6.O-O Be7 7.Re1 Bg4 8.Nbd2 
Nbd7 9.h3 Bh5 10.Nf1 O-O *

[Event "0xe2e0aa11"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D28"]
[Opening "QGA"]
[Variation "classical, 7...b5"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 c5 5.Nf3 a6 6.O-O Nf6 7.Qe2 b5 8.Bd3 cxd4
9.exd4 Be7 10.Nbd2 Bb7 *

[Event "0xe2fa3add"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 Bb4+ 5.Nbd2 c5 *

[Event "0xe2fcd8d5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O 
h5 9.h3 b5 10.Nb3 h4 *

[Event "0xe300a976"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B22"]
[Opening "Sicilian"]
[Variation "Alapin's variation (2.c3)"]

1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 e6 6.Nbd2 Nc6 7.Bc4 Qd8 8.Nb3 
cxd4 9.Nbxd4 Nxd4 10.Nxd4 Qc7 *

[Event "0xe30fd17b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.cxd5 exd5 5.Nc3 Bf5 6.Bg5 Be7 7.Bxe7 Qxe7 8.e3 
Nf6 9.Ne5 Nbd7 10.Nxd7 Nxd7 *

[Event "0xe31b587b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C11"]
[Opening "French"]
[Variation "Burn variation"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4 5.Nxe4 Be7 6.Bxf6 gxf6 7.Nf3 b6 8.Bc4
Bb7 9.Qe2 Nd7 10.O-O-O c6 *

[Event "0xe349fd50"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A96"]
[Opening "Dutch"]
[Variation "classical variation"]

1.d4 e6 2.Nf3 f5 3.g3 Nf6 4.Bg2 Be7 5.O-O O-O 6.c4 d6 7.b3 Qe8 8.Bb2 Nc6 
9.Nbd2 Bd8 10.Qc2 e5 *

[Event "0xe3741a8a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 c5 7.Bb2 Ne4 8.Nbd2 f5 
9.c3 Qa5 10.b4 cxb4 11.Qb3+ e6 12.cxb4 Qb5 13.e3 Nc6 *

[Event "0xe3792ca5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B32"]
[Opening "Sicilian"]
[Variation "Labourdonnais-Loewenthal variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 a6 6.Nd6+ Bxd6 7.Qxd6 Qf6 8.
Qxf6 Nxf6 9.Nc3 Nb4 10.Bd3 h6 *

[Event "0xe3b6aa53"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A29"]
[Opening "English"]
[Variation "four knights, kingside fianchetto"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 Bb4 5.Bg2 O-O 6.O-O e4 7.Ne1 Bxc3 8.dxc3 
h6 *

[Event "0xe3e1b0e1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be3 Nf6 7.Bd3 d5 8.exd5 
exd5 9.Qd2 Bb4 10.a3 Ba5 *

[Event "0xe3e4dea7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C83"]
[Opening "Ruy Lopez"]
[Variation "open, classical defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.c3 Be7 10.Nbd2 O-O *

[Event "0xe3f3e58d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Riumin variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.Nc3 O-O 8.O-O d5
9.Ne5 c6 10.Bf4 Nbd7 *

[Event "0xe3ffe632"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 c5 7.Qe2 a6 8.dxc5 
Bxc5 9.O-O Qc7 10.e4 Ng4 *

[Event "0xe4119b7f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.a3 Bd6 
9.b3 c5 10.Qe2 Nc6 *

[Event "0xe485d255"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B17"]
[Opening "Caro-Kann"]
[Variation "Steinitz variation"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Bc4 Ngf6 6.Ng5 e6 7.Qe2 Nb6 8.Bd3 
h6 9.N5f3 c5 10.Be3 Qc7 *

[Event "0xe4bdd960"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B32"]
[Opening "Sicilian"]
[Variation "Nimzovich variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 d5 5.Bb5 dxe4 6.Nxc6 Qxd1+ 7.Kxd1 a6 8.
Ba4 Bd7 9.Nc3 Bxc6 10.Bxc6+ bxc6 *

[Event "0xe4c3e09b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 c5 7.Qe2 cxd4 8.exd4 
Nc6 9.O-O Nxd4 10.Nxd4 Qxd4 *

[Event "0xe4d23ea4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.Bg5 h6 6.Bh4 dxc4 7.Qxc4 b5 8.Qc2 Bb7
9.Bxf6 *

[Event "0xe4dac58b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B97"]
[Opening "Sicilian"]
[Variation "Najdorf, 7...Qb6"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Nb3 Be7
9.Qe2 h6 10.Bxf6 Bxf6 *

[Event "0xe4ddcf4a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C44"]
[Opening "Scotch gambit"]
[Variation "Dubois-Reti defence"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.e5 d5 6.Bb5 Ne4 7.Nxd4 Bd7 8.Bxc6 
bxc6 9.O-O Bc5 10.Be3 O-O *

[Event "0xe4ed6b39"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A08"]
[Opening "Reti"]
[Variation "King's Indian attack, French variation"]

1.Nf3 d5 2.g3 c5 3.Bg2 Nc6 4.O-O e6 5.d3 Nf6 6.Nbd2 Be7 7.Re1 O-O 8.e4 b5 
9.a4 bxa4 10.Rxa4 a5 *

[Event "0xe4efc897"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "modern Scheveningen, main line"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Be7 7.Be3 O-O 8.Be2 
Nc6 9.O-O Bd7 10.Qe1 Nxd4 *

[Event "0xe4f86d1a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A54"]
[Opening "Old Indian"]
[Variation "Ukrainian variation"]

1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.e4 exd4 5.Qxd4 Nc6 6.Qd2 g6 7.b3 Bg7 8.Bb2 O-O
*

[Event "0xe5163f8d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.Be2 a6 8.O-O 
Be7 9.f4 Qc7 10.Qe1 Nxd4 *

[Event "0xe51b9fb5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 Bb4+ 5.Bd2 Be7 6.Bg2 O-O 7.O-O c6 8.Qc2 b6 
9.Bf4 Bb7 10.Rd1 Nbd7 *

[Event "0xe51d205a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A96"]
[Opening "Dutch"]
[Variation "classical variation"]

1.d4 e6 2.c4 f5 3.Nf3 Nf6 4.g3 Be7 5.Bg2 O-O 6.O-O d6 7.b3 Qe8 8.Bb2 a5 9.
Nc3 Qh5 10.Re1 Na6 *

[Event "0xe51e1287"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E62"]
[Opening "King's Indian"]
[Variation "fianchetto, Kavalek (Bronstein) variation"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.Nc3 d6 7.O-O Qa5 8.h3 e5 9.
e4 Nbd7 10.Re1 exd4 *

[Event "0xe5276176"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D45"]
[Opening "QGD semi-Slav"]
[Variation "Stoltz variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nc3 Nbd7 6.Qc2 Bd6 7.Bd3 O-O 8.O-O 
dxc4 9.Bxc4 a6 10.e4 e5 *

[Event "0xe5340705"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C11"]
[Opening "French"]
[Variation "Steinitz, Boleslavsky variation"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3 a6 8.Qd2 b5 9.
g3 b4 10.Ne2 a5 *

[Event "0xe53e1ce5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.cxd5 cxd5 8.Ne5 
Nc6 9.Nc3 Bf5 10.Nxc6 bxc6 *

[Event "0xe56e1e0f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C11"]
[Opening "French"]
[Variation "Burn variation"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4 5.Nxe4 Be7 6.Nxf6+ Bxf6 7.Bxf6 Qxf6 
8.Nf3 O-O 9.Bd3 c5 10.c3 cxd4 *

[Event "0xe5734302"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "Charousek (Petrosian) variation"]

1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qc2 c5
9.dxc5 Nc6 10.Be2 Qa5 *

[Event "0xe5a12b04"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 e6 8.Qd2 
h6 9.Nf3 exd5 10.e3 O-O *

[Event "0xe5b31534"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.Nge2 b6 8.d5 Na6 9.
Ng3 Nc7 10.Bd3 Rb8 *

[Event "0xe5bb0ab1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D37"]
[Opening "QGD"]
[Variation "4.Nf3"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Qc2 
dxc4 9.Bxc4 Nd7 10.O-O *

[Event "0xe5cb5606"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E54"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system with 7...dc"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4 
cxd4 9.exd4 a6 10.a4 Nbd7 *

[Event "0xe5d8c60"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D45"]
[Opening "QGD semi-Slav"]
[Variation "Stoltz variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nc3 Nbd7 6.Qc2 Bd6 7.Bd3 O-O 8.O-O 
dxc4 9.Bxc4 b5 10.Be2 Re8 *

[Event "0xe5df13ed"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 c6 7.Bd3 Nbd7 8.Qc2 
Nh5 9.Bxe7 Qxe7 10.O-O-O g6 *

[Event "0xe5f1e1c0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 c5 7.O-O O-O 8.Bxb4 
cxb4 9.Qd3 d6 10.Nbd2 Qc7 *

[Event "0xe6126060"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B73"]
[Opening "Sicilian"]
[Variation "dragon, classical, 8.O-O"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 g6 7.Be3 Bg7 8.O-O 
O-O 9.Kh1 Bd7 10.f4 Rc8 *

[Event "0xe6499a37"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A87"]
[Opening "Dutch"]
[Variation "Leningrad, main variation"]

1.c4 f5 2.d4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.O-O d6 7.Nc3 Qe8 8.b3 e5 9.
dxe5 dxe5 10.Ba3 Rf7 *

[Event "0xe686a31b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E75"]
[Opening "King's Indian"]
[Variation "Averbakh, main line"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 e6 8.Qd2 exd5 
9.exd5 Re8 10.Nf3 Bg4 *

[Event "0xe6947d47"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 c5 7.O-O O-O 8.dxc5 
Bxc5 9.Nc3 Ne4 10.Nh4 Nxc3 *

[Event "0xe6b309be"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 e5 7.dxe5 Nfd7 8.Bb2 
dxe5 9.e4 Nc6 10.Na3 Nc5 *

[Event "0xe7039760"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C77"]
[Opening "Ruy Lopez"]
[Variation "Anderssen variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d3 d6 6.c3 Bd7 7.Nbd2 g6 8.Nf1 Bg7 
9.Ng3 O-O 10.O-O Re8 *

[Event "0xe707b469"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B84"]
[Opening "Sicilian"]
[Variation "Scheveningen (Paulsen), classical variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 a6 7.O-O Be7 8.a4 O-O
9.f4 Nc6 10.Kh1 Bd7 *

[Event "0xe72fb792"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E17"]
[Opening "Queen's Indian"]
[Variation "anti-Queen's Indian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 O-O 7.Qc2 c5 8.d5 exd5 
9.Ng5 h6 10.Nxd5 Bxd5 *

[Event "0xe748c2a4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B07"]
[Opening "Pirc"]
[Variation "Ufimtsev-Pytel variation"]

1.e4 d6 2.d4 Nf6 3.Nc3 c6 4.f4 Qa5 5.Bd2 Qb6 6.Nf3 Bg4 7.h3 Bxf3 8.Qxf3 
Qxd4 9.O-O-O Nbd7 10.g4 g6 *

[Event "0xe7668dc3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C88"]
[Opening "Ruy Lopez"]
[Variation "closed, anti-Marshall 8.a4"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.a4 Bb7
9.d3 d6 10.Nbd2 Na5 *

[Event "0xe78068ef"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.e3 c5 7.Bd2 Bxc3 8.Bxc3 
cxd4 9.Bxd4 Nc6 10.Bc3 e5 *

[Event "0xe7b0f12b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian"]
[Variation "dragon variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.g3 Nc6 7.Nde2 Bd7 8.Bg2 
Qc8 9.h3 Bg7 10.Be3 O-O *

[Event "0xe7c29724"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 Nc6 7.g5 Nd7 8.Ndb5 
Nb6 9.Bf4 Ne5 10.Qh5 g6 *

[Event "0xe7c66769"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B06"]
[Opening "Robatsch (modern) defence"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Be3 a6 5.Qd2 b5 6.a4 b4 7.Nd1 a5 8.c3 Nf6 9.f3
bxc3 10.bxc3 Ba6 *

[Event "0xe7d296c8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "QGD Slav"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nbd2 c5 6.b3 dxc4 7.Bxc4 cxd4 8.Nxd4 
Bd6 9.Bb2 O-O 10.O-O Bd7 *

[Event "0xe7dd7fa2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 Nf6 5.Nf3 c5 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
Nc6 9.a3 O-O 10.b4 Ba7 *

[Event "0xe7eeff11"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C11"]
[Opening "French"]
[Variation "Steinitz, Boleslavsky variation"]

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3 a6 8.Qd2 b5 9.
h4 cxd4 10.Nxd4 Nxd4 *

[Event "0xe806634c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C04"]
[Opening "French"]
[Variation "Tarrasch, Guimard main line"]

1.e4 e6 2.d4 d5 3.Nd2 Nc6 4.Ngf3 Nf6 5.e5 Nd7 6.Be2 f6 7.exf6 Qxf6 *

[Event "0xe81c9bde"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3 Ng4 8.Bg5 f6 
9.Bc1 Nc6 10.h3 Nh6 *

[Event "0xe81f76c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 c5 6.O-O Nc6 7.Qa4 Bd7 8.dxc5 
Bxc5 9.Qxc4 Be7 10.Nc3 O-O *

[Event "0xe849cb81"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B60"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Qb6 7.Nb3 e6 8.Bxf6 
gxf6 9.Be2 a6 10.Bh5 Bd7 *

[Event "0xe84cfd19"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Bb4+ 5.Nbd2 O-O 6.Bg2 dxc4 7.Qc2 Qd5 8.O-O 
Nc6 9.e3 Bxd2 10.Bxd2 Qh5 *

[Event "0xe8641c77"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni defence"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.Bf4 a6 8.e4 Bg7 
9.Qa4+ Bd7 10.Qb3 b5 *

[Event "0xe877afbd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E18"]
[Opening "Queen's Indian"]
[Variation "old main line, 7.Nc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Bd2 d5 
9.cxd5 exd5 10.Ne5 Nd7 *

[Event "0xe87c9944"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.Qd2 Be7 8.f3 
O-O 9.g4 Nxd4 10.Bxd4 d5 *

[Event "0xe8b11139"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B94"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.Bg5"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 Nbd7 7.Qe2 e6 8.f4 
Qc7 9.O-O-O b5 10.a3 Bb7 *

[Event "0xe8cc1d6a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B52"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky attack, Bronstein gambit"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nc6 6.c3 Nf6 7.d4 cxd4 8.
cxd4 d5 9.e5 Ne4 10.Be3 e6 *

[Event "0xe8e1a410"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 a6 7.Qd2 c5 8.d5 b5 9.
cxb5 Qb6 10.a4 axb5 *

[Event "0xe8f68d38"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.Nf3 Qf5 7.Qxf5 exf5 8.a3
Bd6 9.Bg5 *

[Event "0xe914e5f5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Nc6 7.Nf3 Qb6 8.Bd3 
Be7 *

[Event "0xe926c43"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A25"]
[Opening "English"]
[Variation "closed system"]

1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.e3 d6 6.Nge2 h5 7.h4 Nh6 *

[Event "0xe978b7c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 Nf6 2.Nf3 d5 3.c4 dxc4 4.e3 e6 5.Bxc4 c5 6.Qe2 cxd4 7.exd4 Bb4+ 8.Nc3
O-O 9.O-O Nbd7 10.Bb3 b6 *

[Event "0xe97cdf1f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B67"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 b5 10.Bxf6 gxf6 *

[Event "0xe9a3aa94"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Bd3 Qc7 8.O-O Be7
9.Kh1 O-O 10.Qe2 Nbd7 *

[Event "0xe9bb4dad"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B93"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 e5 7.Nf3 Nbd7 8.a4 Be7
9.Bc4 Qc7 10.Qe2 b6 *

[Event "0xe9bbc535"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian"]
[Variation "classical, Pirc variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O 6.Bf4 Bxc5 7.Nf3 Nc6 8.a3 
Be7 9.Rd1 Qa5 10.e4 Rd8 *

[Event "0xe9f55276"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "modern Scheveningen, main line"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O O-O 8.f4 
Nc6 9.Be3 a6 10.Qe1 Bd7 *

[Event "0xe9f5bd4b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
Qa5 9.Nf3 Nc6 10.Rb1 cxd4 *

[Event "0xea0577fd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B06"]
[Opening "Robatsch defence"]

1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.f4 d5 5.e5 Nh6 6.Bd3 f6 7.Nf3 Bg4 8.h3 Bxf3 9.
Qxf3 O-O 10.exf6 exf6 *

[Event "0xea0cf338"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C61"]
[Opening "Ruy Lopez"]
[Variation "Bird's defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nd4 4.Nxd4 exd4 5.O-O Bc5 6.d3 c6 7.Ba4 Ne7 8.Qh5 
d5 9.Nd2 O-O 10.Nf3 f6 *

[Event "0xea107cf4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B10"]
[Opening "Caro-Kann"]
[Variation "closed (Breyer) variation"]

1.e4 c6 2.d3 d5 3.Nd2 e5 4.Ngf3 Bd6 5.g3 Nf6 6.Bg2 O-O 7.O-O Re8 8.b3 a5 
9.a3 Nbd7 10.Bb2 Nf8 *

[Event "0xea181c98"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 c5 6.O-O Nc6 7.Qa4 Bd7 8.Qxc4 b5
9.Qd3 Rc8 10.dxc5 Bxc5 *

[Event "0xea3e2736"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B58"]
[Opening "Sicilian"]
[Variation "classical"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 g6 7.Be3 Bg7 8.h3 
O-O 9.Qd2 Bd7 10.g4 Nxd4 *

[Event "0xea5f0d02"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bd3 Nc6 7.Be3 Nb4 8.Be4 
f5 9.exf6 exf6 10.a3 f5 *

[Event "0xea71ba17"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.g5 hxg5 8.Bxg5 
Nc6 9.Qd2 a6 10.O-O-O Bd7 *

[Event "0xea967a8b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C65"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 Bc5 5.Bxc6 dxc6 6.Be3 Bd6 7.h3 O-O 8.Nbd2
Nd7 9.Nc4 c5 10.a4 Qe7 *

[Event "0xea9f3ec2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D28"]
[Opening "QGA"]
[Variation "classical, 7...b5"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 a6 7.O-O c5 8.Qe2 b5 
9.Bd3 cxd4 10.exd4 Be7 *

[Event "0xeaab5b21"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C19"]
[Opening "French"]
[Variation "Winawer, advance, poisoned pawn variation"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.a3 Bxc3+ 6.bxc3 c5 7.Qg4 O-O 8.Bd3 f5
9.exf6 Rxf6 10.Bg5 Nd7 *

[Event "0xeac6f250"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B63"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 Qb6 8.Nb3 
a6 9.Be2 Qc7 10.f4 b5 *

[Event "0xead9d998"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A62"]
[Opening "Benoni"]
[Variation "fianchetto variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.g3 Bg7 8.Bg2 O-O 
9.O-O Re8 10.Re1 Ne4 *

[Event "0xeae12886"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian"]
[Variation "modern Scheveningen, main line"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O O-O 8.f4 
Nc6 9.Be3 a6 10.Kh1 Bd7 *

[Event "0xeaf4a48"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Bxd2+ 7.Qxd2 d6 8.Nc3 
Nbd7 9.O-O Ne4 10.Qc2 Nxc3 *

[Event "0xeb27a60e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 O-O 7.a3 Be7 8.Nf4 d5
9.cxd5 Nxd5 10.Ncxd5 exd5 *

[Event "0xeb5561aa"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian"]
[Variation "dragon variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Bg5 Bg7 7.f3 Nc6 8.Nb3 
O-O 9.Qd2 a6 10.O-O-O Re8 *

[Event "0xeb7de47c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B53"]
[Opening "Sicilian, Chekhover variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.Be3 Nc6 6.Qb6 Qxb6 7.Bxb6 Nf6 8.Nc3
Nd7 9.Be3 e6 10.a4 Be7 *

[Event "0xeb9ad7af"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.dxc5 dxc5 8.Qxd8 
Rxd8 9.Bxc5 Nc6 10.Ba3 a5 *

[Event "0xebbce908"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 dxc4 3.e3 e6 4.Bxc4 c5 5.Nf3 a6 6.O-O Nf6 7.Bd3 Nbd7 8.Re1 b5
9.a4 bxa4 10.e4 cxd4 *

[Event "0xebbd65fe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Bd2 Bxd2+ 6.Nbxd2 exd4 7.Bxc4 Nc6 
8.O-O Qf6 9.e5 Qg6 10.Re1 *

[Event "0xebc0bc0d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E17"]
[Opening "Queen's Indian"]
[Variation "anti-Queen's Indian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 O-O 7.Qc2 d5 8.cxd5 
exd5 9.O-O Na6 10.Ne5 c5 *

[Event "0xebf78385"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Riumin variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.Nc3 O-O 8.O-O 
Na6 9.a3 *

[Event "0xec01be2b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.e3 f5 5.Bd3 Bd6 6.O-O Nf6 7.b3 Qe7 8.Bb2 O-O 9.
Nc3 Ne4 10.Ne2 Nd7 *

[Event "0xec277e0d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 a5 7.Bb2 a4 8.c4 c5 9.
Na3 Nc6 10.Nb5 Ne4 *

[Event "0xec4b9ba"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B52"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky attack, 3...Bd7"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Nxd7 5.O-O Ngf6 6.Qe2 e6 7.b3 Be7 8.
Bb2 O-O 9.c4 e5 10.Nc3 Ne8 *

[Event "0xec7a1398"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B12"]
[Opening "Caro-Kann"]
[Variation "advance variation"]

1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nd2 e6 5.Nb3 Nd7 6.Nf3 h6 7.Be2 Ne7 8.O-O Qc7 
9.a4 a5 10.Bd2 g5 *

[Event "0xec96884e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, not Scheveningen"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Bd7 7.Bb3 a6 8.O-O 
e6 9.Kh1 Be7 10.f4 O-O *

[Event "0xec9e736f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Nc3 exd4 6.Nxd4 Ne7 7.Bxc4 Nbc6 8.
Be3 O-O 9.a3 *

[Event "0xeca6df21"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.h4 Be7 8.Bg2 Nc6 
9.Nb3 a6 10.g5 Nd7 *

[Event "0xecb0e5cc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E06"]
[Opening "Catalan"]
[Variation "closed, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Be7 5.Bg2 O-O 6.O-O dxc4 7.Qc2 a6 8.a4 Bd7 
9.Rd1 Bc6 10.Nc3 Bxf3 *

[Event "0xecb98354"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E17"]
[Opening "Queen's Indian"]
[Variation "anti-Queen's Indian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 O-O 7.d5 Bb4 8.O-O Bxc3
9.bxc3 Na6 10.Ne1 Nc5 *

[Event "0xecf9f5db"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.e3 f5 5.Bd3 Bd6 6.O-O Nf6 7.b3 Qe7 8.Bb2 O-O 9.
Qc1 Ne4 10.Ba3 Nd7 *

[Event "0xed129855"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 d5 7.a3 Be7 8.c5 *

[Event "0xed2ba561"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Qxc4 c5 8.dxc5 
Bxc5 9.Nd4 Qb6 10.e3 Ne5 *

[Event "0xed383b83"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 d5 6.c4 e5 7.Nf3 d4 8.O-O Nc6 
9.e3 Be7 10.exd4 exd4 *

[Event "0xed87a886"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "semi-Slav, Abrahams variation"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 5.a4 Bb4 6.e3 b5 7.Bd2 a5 8.axb5 Bxc3 
9.Bxc3 cxb5 10.b3 Bb7 *

[Event "0xedd9a65d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, Benko variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Qb6 7.Nb3 e6 8.O-O 
a6 9.a4 Qc7 10.a5 Nxa5 *

[Event "0xedee212a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B12"]
[Opening "Caro-Kann"]
[Variation "advance variation"]

1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nd2 e6 5.Nb3 Nd7 6.Nf3 h6 7.Be2 Ne7 8.O-O g5 9.
Ne1 c5 10.Nxc5 Nxc5 *

[Event "0xee1d20a4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.Be3 c6 8.d5 Ng4 9.
Bg5 f6 10.Bh4 c5 *

[Event "0xee22508f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C22"]
[Opening "Centre game"]
[Variation "Paulsen attack"]

1.e4 e5 2.d4 exd4 3.Qxd4 Nc6 4.Qe3 Bb4+ 5.Bd2 Nf6 6.Nc3 O-O 7.O-O-O Re8 8.
f3 d5 9.Be1 d4 10.Qf2 Qe7 *

[Event "0xee3a3a9f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 dxc4 7.e4 Bg4 8.Bxc4 
Nh5 9.Be3 Bxf3 10.gxf3 e5 *

[Event "0xee3e67b9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A21"]
[Opening "English, Troeger defence"]

1.c4 e5 2.Nc3 Nc6 3.g3 d6 4.Bg2 Be6 5.d3 Qd7 6.Rb1 g6 *

[Event "0xee5caa55"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B63"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...Be7"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O
O-O 9.Nb3 a6 10.f4 b5 *

[Event "0xee5f4334"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A32"]
[Opening "English"]
[Variation "symmetrical variation"]

1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Bb4 6.g3 O-O 7.Bg2 d5 8.cxd5 
Nxd5 9.Bd2 Nxc3 10.bxc3 Ba5 *

[Event "0xee621319"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B23"]
[Opening "Sicilian"]
[Variation "closed"]

1.e4 c5 2.Nc3 d6 3.f4 g6 4.Nf3 Bg7 5.d4 cxd4 6.Nxd4 Nd7 7.Be2 Ngf6 8.Be3 
a6 9.Nb3 b5 10.Bf3 Bb7 *

[Event "0xee920dd4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.Nf3 Qf5 7.Qb3 c5 8.a3 
Ba5 9.Bd2 Nc6 10.dxc5 Qxc5 *

[Event "0xee94433"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E18"]
[Opening "Queen's Indian"]
[Variation "old main line, 7.Nc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 O-O 7.O-O Ne4 8.Bd2 d5 
9.cxd5 exd5 10.Ne5 Nxc3 *

[Event "0xeebdee62"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Qa4+ Nbd7 6.Bg2 a6 7.Qxc4 c5 8.dxc5 
Bxc5 9.O-O b5 10.Qh4 Bb7 *

[Event "0xeed9bca3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B92"]
[Opening "Sicilian"]
[Variation "Najdorf, Opovcensky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O 
Be6 9.Be3 O-O 10.f3 b5 *

[Event "0xef1ee57c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.e3 O-O 7.Bd2 Bxc3 8.Bxc3
b6 9.Be2 Nc6 10.Nf3 a5 *

[Event "0xef27095"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Bd2 Bxd2+ 6.Qxd2 exd4 7.Qxd4 Nf6 8.
Nc3 Be6 9.Qxd8+ Kxd8 10.Ne5 Ke7 *

[Event "0xef31b2e7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 Nc6 5.c4 cxd4 6.Nxd4 Qb6 7.Nc2 d5 8.cxd5 
Nxd5 9.O-O Be7 10.Ne3 Nxe3 *

[Event "0xef36a02a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.g3 dxc4 6.Qxc4 b5 7.Qc2 Bb7 8.Bg2 
Nbd7 9.a4 b4 10.Ne5 Qc8 *

[Event "0xef39e82e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B08"]
[Opening "Pirc"]
[Variation "classical system, 5.Be2"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O c6 7.h3 Qc7 8.a4 e5 9.
Re1 Nbd7 10.Be3 b6 *

[Event "0xef567d8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.Nge2 Nc6 8.Qd2 e6 
9.dxc5 dxc5 10.Bxc5 Qxd2+ *

[Event "0xef5ca218"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C66"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence, hedgehog variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 d6 4.d4 Bd7 5.Nc3 Nf6 6.O-O Be7 7.dxe5 dxe5 8.Re1 
Bd6 9.Bg5 Ne7 10.Bxd7+ Nxd7 *

[Event "0xef5fb46f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A28"]
[Opening "English"]
[Variation "four knights, 4.e3"]

1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e3 Bb4 5.Qc2 O-O 6.d3 Re8 7.Bd2 d6 8.Be2 Bf5
9.O-O e4 10.Ne1 Bg6 *

[Event "0xef621493"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 d5 7.c5 Ne4 8.Bd2 
Nxd2 9.Qxd2 a5 10.a3 Bxc3 *

[Event "0xef6dd6a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B20"]
[Opening "Sicilian"]
[Variation "Steinitz variation"]

1.e4 c5 2.g3 d5 3.exd5 Qxd5 4.Nf3 Bg4 5.Bg2 Qe6+ 6.Kf1 Nc6 7.h3 Bh5 8.d3 
Qd7 9.Be3 e6 10.Nbd2 Rd8 *

[Event "0xef972716"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B94"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.Bg5"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 Nbd7 7.Bc4 h6 8.Bxf6 
Nxf6 9.Qe2 g6 10.O-O-O Qc7 *

[Event "0xefa5b422"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A89"]
[Opening "Dutch"]
[Variation "Leningrad, main variation with Nc6"]

1.Nf3 f5 2.d4 Nf6 3.g3 g6 4.Bg2 Bg7 5.c4 O-O 6.Nc3 d6 7.O-O Nc6 8.b3 Ne4 
9.Bb2 e5 10.dxe5 Nxc3 *

[Event "0xefad2d7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian"]
[Variation "dragon variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O Nc6 8.Nb3 
a5 9.a4 Be6 10.Be3 O-O *

[Event "0xefbcafe7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C50"]
[Opening "Giuoco Piano"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.O-O Nf6 5.d3 d6 6.c3 Bb6 7.Nbd2 Ne7 8.a4 c6 
9.Bb3 Ng6 10.Nc4 Bc7 *

[Event "0xefc1536"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E38"]
[Opening "Nimzo-Indian"]
[Variation "classical, 4...c5"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 Na6 6.a3 Bxc3+ 7.Qxc3 Nxc5 8.f3
a5 9.Bf4 *

[Event "0xefdb0213"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 a6 7.O-O c5 8.Bd3 Nbd7
9.Qe2 cxd4 10.exd4 b5 *

[Event "0xf019d169"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A80"]
[Opening "Dutch"]

1.d4 f5 2.Nf3 Nf6 3.g3 g6 4.Bg2 Bg7 5.O-O O-O 6.c4 d6 7.Nc3 Qe8 8.d5 a5 9.
Rb1 Na6 10.b3 h6 *

[Event "0xf01df0c9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.g5 hxg5 8.Bxg5 
Nc6 9.Qd2 Qb6 10.Nb3 a6 *

[Event "0xf029136e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D47"]
[Opening "QGD semi-Slav"]
[Variation "Meran, Wade variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 Nbd7 6.Nc3 dxc4 7.Bxc4 b5 8.Bd3 
Bb7 9.O-O b4 10.Ne4 Be7 11.Nxf6+ *

[Event "0xf02dddf8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C50"]
[Opening "Giuoco Pianissimo"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 Bc5 5.O-O d6 6.c3 O-O 7.Bb3 a6 8.Nbd2 Ba7
9.Nc4 h6 10.a4 Be6 *

[Event "0xf0500c3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.c3 cxd4 7.cxd4 Be7 8.Bg5 
O-O 9.Qd3 a6 10.Nbd2 Nc6 *

[Event "0xf07d4a07"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 d6 7.Bg2 Bd7 8.O-O Nf6
9.a4 Be7 10.Nb3 O-O *

[Event "0xf093ce60"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D92"]
[Opening "Gruenfeld"]
[Variation "5.Bf4"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bf4 O-O 6.Rc1 dxc4 7.e4 b5 8.Nxb5 
Nxe4 9.Bxc7 Qd7 10.Bxc4 a6 *

[Event "0xf0fc17b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 a6 6.O-O Nc6 7.e3 Bd7 8.Nbd2 b5 
9.Ne5 Nd5 10.Ndf3 Bd6 *

[Event "0xf0fe0712"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B92"]
[Opening "Sicilian"]
[Variation "Najdorf, Opovcensky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nf3 Qc7 8.Bg5 
Nbd7 9.a4 Be7 10.O-O h6 *

[Event "0xf10433f8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Bd2 Bxd2+ 6.Qxd2 exd4 7.Nxd4 *

[Event "0xf107bdf7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A11"]
[Opening "English"]
[Variation "Caro-Kann defensive system"]

1.c4 c6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Bf5 5.O-O e6 6.cxd5 exd5 7.Nc3 Be7 8.d3 h6
9.Nd4 Bh7 10.e4 O-O *

[Event "0xf10fcaaf"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.g5 hxg5 8.Bxg5 
Nc6 9.Qd2 Qb6 10.Nb3 Ne5 *

[Event "0xf110404c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.g3 dxc4 6.Qxc4 b5 7.Qc2 Bb7 8.Bg2 
Nbd7 9.O-O c5 10.Nc3 b4 *

[Event "0xf125c047"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A22"]
[Opening "English"]
[Variation "Bremen, Smyslov system"]

1.c4 e5 2.Nc3 Nf6 3.g3 Bb4 4.Bg2 O-O 5.Nf3 Re8 6.O-O e4 7.Ng5 Bxc3 8.dxc3 
h6 *

[Event "0xf142d08e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C19"]
[Opening "French"]
[Variation "Winawer, advance, poisoned pawn variation"]

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Qg4 O-O 8.Nf3 
Nbc6 9.Bd3 f5 10.Qg3 Qa5 *

[Event "0xf146802c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be2 a6 7.O-O Nge7 *

[Event "0xf1565ca5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Be7 7.Bd3 Nc6 8.Nf3 
O-O 9.a3 *

[Event "0xf16e06f7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.e3 f5 5.Bd3 Nf6 6.O-O Be7 *

[Event "0xf1741a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.Be2 a6 8.O-O 
Be7 9.a4 Qc7 10.Nb3 *

[Event "0xf187fdc2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian"]
[Variation "dragon variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O O-O 8.Be3 
Nc6 9.Kh1 Bd7 10.f4 a6 *

[Event "0xf18d4f5c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Riumin variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.Nc3 O-O 8.O-O 
Na6 9.Rc1 c5 10.d5 exd5 *

[Event "0xf19f41f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A92"]
[Opening "Dutch defence, Alekhine variation"]

1.d4 e6 2.c4 f5 3.g3 Nf6 4.Bg2 Be7 5.Nf3 O-O 6.O-O Ne4 7.Qc2 Bf6 8.Nc3 d5 
9.Bf4 c6 10.Rad1 Nd7 *

[Event "0xf1d07e21"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C88"]
[Opening "Ruy Lopez"]
[Variation "closed, anti-Marshall 8.a4"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.a4 b4 
9.c3 d6 10.d3 Re8 *

[Event "0xf1d85dc7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "semi-Slav"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.e3 f5 5.Nf3 Nf6 6.Be2 Bd6 7.Ne5 O-O 8.O-O Kh8 
9.Rb1 Bd7 10.b4 Be8 *

[Event "0xf201a555"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B48"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O 
b5 9.Nxc6 Qxc6 10.f3 Bc5 *

[Event "0xf2168f2d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A90"]
[Opening "Dutch defence"]

1.d4 e6 2.g3 f5 3.Bg2 Nf6 4.c4 c6 5.Nd2 d5 6.Qc2 Bd6 7.Nh3 O-O 8.O-O Qe7 
9.Nf3 b6 10.Bf4 Bb7 *

[Event "0xf21e0132"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 d5 6.O-O e5 7.Nf3 Nc6 8.c4 d4 
9.e3 Bc5 10.exd4 exd4 *

[Event "0xf2468803"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E17"]
[Opening "Queen's Indian"]
[Variation "anti-Queen's Indian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 O-O 7.Qc2 d5 8.cxd5 
exd5 9.O-O Na6 10.Rd1 Qc8 *

[Event "0xf2613dbe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B54"]
[Opening "Sicilian"]
[Variation "Prins (Moscow) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3 Nc6 6.c4 Qb6 7.Nc2 g6 8.Nc3 Bg7
9.Nb5 O-O 10.Be3 Qa5+ *

[Event "0xf278fba1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 Nc6 6.Qa4 Bd7 7.Qxc4 Na5 8.Qd3 
c5 9.O-O Bc6 10.Nc3 *

[Event "0xf27f6ac5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B08"]
[Opening "Pirc"]
[Variation "classical system, 5.Be2"]

1.d4 d6 2.Nf3 g6 3.e4 Bg7 4.Be2 Nf6 5.Nc3 O-O 6.O-O Bg4 7.Be3 Nc6 8.Qd2 e5
9.dxe5 dxe5 10.Rad1 Qb8 *

[Event "0xf2ac3cbd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A70"]
[Opening "Benoni"]
[Variation "classical with e4 and Nf3"]

1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 g6 6.Nc3 d6 7.e4 a6 8.Qe2 Bg4 
9.e5 Bxf3 10.gxf3 dxe5 *

[Event "0xf2e9fee7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.Be3 c6 8.d5 Ng4 9.
Bg5 f6 10.Bh4 Na6 *

[Event "0xf2eb47b1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C65"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d4 Nxe4 5.Qe2 Nd6 6.Bxc6 dxc6 7.dxe5 Nf5 8.
O-O Nd4 9.Nxd4 Qxd4 10.h3 Bf5 *

[Event "0xf2f1d3a2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B93"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 e6 7.Be2 Qc7 8.O-O Be7
9.Be3 Nbd7 10.Bf3 g6 *

[Event "0xf3045649"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E54"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system with 7...dc"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 d5 7.O-O dxc4 8.Bxc4 
Nc6 9.a3 Ba5 10.Qd3 a6 *

[Event "0xf30eb66c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "QGD Slav"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nbd2 c5 6.b3 cxd4 7.exd4 Nc6 8.Bb2 Ne4
9.Bd3 Bb4 10.O-O Nxd2 *

[Event "0xf30edc1e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Byrne (English) attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nf3 Qc7 8.a4 Be7
9.a5 Be6 10.Nd5 Nxd5 *

[Event "0xf31bbf8d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C80"]
[Opening "Ruy Lopez"]
[Variation "open, Zukertort variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Ne7 9.Ng5 Nxg5 10.Bxg5 Bb7 *

[Event "0xf3652b98"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C59"]
[Opening "two knights defence"]
[Variation "Steinitz variation"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+ c6 7.dxc6 bxc6 8.
Be2 h6 9.Nh3 Bd6 10.d3 O-O *

[Event "0xf373e38c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A34"]
[Opening "English"]
[Variation "symmetrical, Rubinstein system"]

1.c4 c5 2.Nc3 Nf6 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nc7 6.d3 e5 7.f4 exf4 8.Bxf4 
Ne6 *

[Event "0xf382f350"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C55"]
[Opening "Two knights defence (Modern bishop's opening)"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 Be7 5.Nc3 d6 6.a3 O-O 7.O-O Nd7 8.Nd5 Nb6
9.Nxe7+ Qxe7 10.Bg5 Qe8 *

[Event "0xf39760c4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B67"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7"]

1.e4 c5 2.Nf3 d6 3.Nc3 a6 4.d4 cxd4 5.Nxd4 Nf6 6.Bg5 Nc6 7.Qd2 e6 8.O-O-O 
Bd7 9.f4 b5 10.Bxb5 axb5 *

[Event "0xf39d0e8a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B89"]
[Opening "Sicilian"]
[Variation "Sozin, 7.Be3"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Be3 a6 8.Bb3 
Qc7 9.f4 Be7 10.Qf3 Nxd4 *

[Event "0xf3cd4317"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B40"]
[Opening "Sicilian"]
[Variation "Anderssen variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Nxc6 bxc6 7.e5 Nd5 8.Ne4
f5 9.Nd6+ Bxd6 10.exd6 Qb6 *

[Event "0xf3e2331f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E34"]
[Opening "Nimzo-Indian"]
[Variation "classical, Noa variation"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.Nf3 Qf5 7.Qxf5 exf5 8.a3
Be7 9.Bg5 Be6 10.e3 c6 *

[Event "0xf3ea51af"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B88"]
[Opening "Sicilian"]
[Variation "Sozin, Leonhardt variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3 Be7 8.Be3 
O-O 9.O-O Nxd4 10.Bxd4 b5 *

[Event "0xf3f38524"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B54"]
[Opening "Sicilian"]
[Variation "Prins (Moscow) variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3 Nc6 6.c4 e6 7.Nc3 Be7 8.Nc2 O-O
9.Ne3 Qb6 10.Be2 Rd8 *

[Event "0xf3f63fa"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.O-O d5 6.Nxd4 Be7 7.c4 O-O 8.cxd5 
exd5 *

[Event "0xf426d051"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 c6 7.Bd3 Nbd7 8.Qc2 
O-O 9.Nf3 Re8 10.O-O Nf8 *

[Event "0xf4bcb701"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 Nc6 7.g5 Nd7 8.Be3 Be7
9.h4 Nb6 10.f4 d5 *

[Event "0xf4c9aeef"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 d5 7.a3 Be7 8.cxd5 
Nxd5 9.Nxd5 Qxd5 10.Nc3 Qd8 *

[Event "0xf4d64b46"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B58"]
[Opening "Sicilian"]
[Variation "classical"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Bd7 7.Be3 e6 8.O-O 
a6 9.f4 Qc7 10.Kh1 Be7 *

[Event "0xf4e44d57"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B63"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...Be7"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O
Nxd4 9.Qxd4 a6 10.h4 *

[Event "0xf4f07d2d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D79"]
[Opening "Neo-Gruenfeld, 6.O-O, main line"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 d5 6.O-O c6 7.cxd5 cxd5 8.Ne5 
Nbd7 9.Nc3 e6 10.f4 b6 *

[Event "0xf4f21646"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D02"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 Bb4+ 5.Bd2 Be7 6.Bg2 O-O 7.O-O c6 8.Qc2 b6 
9.Bf4 Bb7 10.Nbd2 Nbd7 *

[Event "0xf501fafb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B60"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Qb6 7.Nb3 e6 8.g4 a6
9.Be3 Qc7 10.g5 Nd7 *

[Event "0xf54518a7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bd3 Nc6 7.Ne2 Bg4 8.f3 
Be6 9.Nbc3 Bd5 10.O-O e6 *

[Event "0xf5463b7d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Bg2 c5 6.O-O Nc6 7.Qa4 cxd4 8.Nxd4 
Qxd4 9.Bxc6+ Bd7 10.Rd1 Qxd1+ *

[Event "0xf59eac28"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D45"]
[Opening "QGD semi-Slav"]
[Variation "Stoltz variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nc3 Nbd7 6.Qc2 Bd6 7.Bd3 O-O 8.O-O 
dxc4 9.Bxc4 b5 10.Be2 Bb7 *

[Event "0xf5a035e1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Qc2 Nf6 5.g3 Bd6 6.Bg2 O-O 7.O-O Nbd7 8.Nc3 
dxc4 9.Nd2 Nb6 10.Nce4 Be7 *

[Event "0xf5d4ff0e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A09"]
[Opening "Reti"]
[Variation "advance variation"]

1.Nf3 d5 2.c4 d4 3.g3 Nc6 4.Bg2 e5 5.d3 Nf6 6.O-O Nd7 7.Na3 Be7 8.Nc2 a5 
9.b3 O-O *

[Event "0xf5f69a8b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B31"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (with ...g6, without ...d6)"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.Na3 Nf6 6.Re1 O-O 7.Bxc6 bxc6 8.e5 
Nd5 9.d3 d6 10.Nc4 h6 *

[Event "0xf63c4233"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 d6 4.Nf3 g6 5.O-O Bg7 6.c4 O-O 7.Nc3 Qe8 8.b3 c6 9.
Ba3 h6 10.Qd3 g5 *

[Event "0xf642bd1f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B14"]
[Opening "Caro-Kann"]
[Variation "Panov-Botvinnik attack, 5...e6"]

1.e4 c6 2.c4 d5 3.exd5 cxd5 4.d4 Nf6 5.Nc3 e6 6.Nf3 Be7 7.cxd5 Nxd5 8.Bb5+
Bd7 9.Bxd7+ Qxd7 10.Ne5 Nxc3 *

[Event "0xf659e12f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B36"]
[Opening "Sicilian"]
[Variation "accelerated fianchetto, Gurgenidze variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Nf6 6.Nc3 Nxd4 7.Qxd4 d6 8.c5 
Bg7 9.Bb5+ Bd7 10.cxd6 O-O *

[Event "0xf6a0d72c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 h6 7.Be3 c5 8.d5 e6 9.
Qd2 exd5 10.cxd5 Re8 *

[Event "0xf6e2be24"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 d6 4.Nf3 g6 5.O-O Bg7 6.c4 O-O 7.Nc3 Qe8 8.d5 Na6 
9.Rb1 Nc5 10.Nd4 Bd7 *

[Event "0xf72c44d2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B52"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky attack, 3...Bd7"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nf6 6.Re1 Nc6 7.b3 e6 8.Bb2
Be7 9.d4 cxd4 10.Nxd4 d5 *

[Event "0xf756ba85"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E92"]
[Opening "King's Indian"]
[Variation "Gligoric-Taimanov system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3 c6 8.Qd2 exd4 
9.Nxd4 Re8 10.f3 d5 *

[Event "0xf761dc86"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B54"]
[Opening "Sicilian"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 e6 6.Be3 Nf6 7.Be2 Be7 8.O-O 
Bd7 9.Ndb5 Qb8 10.a4 O-O *

[Event "0xf773edff"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 c6 7.Bd3 Nbd7 8.Nge2 
Nb6 *

[Event "0xf77f52bc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A47"]
[Opening "Queen's Indian defence"]

1.d4 Nf6 2.Nf3 b6 3.e3 Bb7 4.Bd3 e6 5.O-O c5 6.Nbd2 Nc6 7.c3 Qc7 8.dxc5 
bxc5 9.e4 Be7 *

[Event "0xf789235a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C22"]
[Opening "Centre game"]
[Variation "Paulsen attack"]

1.e4 e5 2.d4 exd4 3.Qxd4 Nc6 4.Qe3 g6 5.Bd2 Bg7 6.Nc3 Nge7 7.Nd5 O-O 8.
O-O-O d6 9.Bc3 Nxd5 10.exd5 Re8 *

[Event "0xf79534e6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.h4 Nc6 8.Rg1 h5 
9.g5 Ng4 10.Be2 g6 *

[Event "0xf79b23e4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E52"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, main line with ...b6"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6 7.O-O Bb7 8.a3 Be7 
9.cxd5 exd5 10.b4 Nbd7 *

[Event "0xf7a138d1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.cxd5 exd5 5.Nc3 Nf6 6.Qc2 Na6 7.Bg5 Be7 8.e3 
Nc7 9.Bd3 Ne6 10.Bh4 g6 *

[Event "0xf7d3337c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A96"]
[Opening "Dutch"]
[Variation "classical variation"]

1.d4 e6 2.Nf3 f5 3.g3 Nf6 4.Bg2 Be7 5.O-O O-O 6.c4 d6 7.Nc3 a5 8.b3 Ne4 9.
Bb2 Nxc3 10.Bxc3 Qe8 *

[Event "0xf7d8d28c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A48"]
[Opening "King's Indian"]
[Variation "Torre attack"]

1.d4 Nf6 2.Nf3 g6 3.Bg5 Bg7 4.Nbd2 d6 5.e4 O-O 6.c3 c5 7.dxc5 dxc5 8.Bc4 
Nc6 *

[Event "0xf7eb95b8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B84"]
[Opening "Sicilian"]
[Variation "Scheveningen (Paulsen), classical variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 a6 7.f4 Qc7 8.a4 *

[Event "0xf7eda809"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B67"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 Qc7 10.Nf3 h6 *

[Event "0xf843866b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B32"]
[Opening "Sicilian defence"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qb6 5.Nb3 Nf6 6.Nc3 e6 7.Bd3 a6 8.O-O 
Be7 9.Kh1 O-O 10.f4 d6 *

[Event "0xf8488589"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E38"]
[Opening "Nimzo-Indian"]
[Variation "classical, 4...c5"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 Na6 6.a3 Bxc3+ 7.Qxc3 Nxc5 8.b4
Nce4 9.Qd4 d5 10.c5 b6 *

[Event "0xf84e8180"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Bg5 c5 7.d5 a6 8.a4 h6 9.Be3
e6 10.Qd2 exd5 *

[Event "0xf8557ed9"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B59"]
[Opening "Sicilian"]
[Variation "Boleslavsky variation, 7.Nb3"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 e5 7.Nb3 Be7 8.Bg5 
O-O 9.Bxf6 Bxf6 10.Nd5 Bg5 *

[Event "0xf86e033a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "semi-Slav, Noteboom variation"]

1.d4 d5 2.c4 e6 3.Nf3 c6 4.Nc3 dxc4 5.g3 *

[Event "0xf88cfdae"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.Nge2 cxd4 8.Nxd4 
Nc6 9.Qd2 Nxd4 10.Bxd4 Qa5 *

[Event "0xf895ce65"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E81"]
[Opening "King's Indian"]
[Variation "Saemisch, 5...O-O"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.Nge2 b6 8.d5 e6 *

[Event "0xf8a683fc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 Nc6 6.O-O Rb8 7.Ne5 *

[Event "0xf8b99816"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B45"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be3 Nf6 7.f4 e5 8.Nf3 Ng4
9.Qd2 Nxe3 10.Qxe3 exf4 *

[Event "0xf8ee13d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B88"]
[Opening "Sicilian"]
[Variation "Sozin, Leonhardt variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3 a6 8.f4 Na5
*

[Event "0xf8f0721f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B72"]
[Opening "Sicilian"]
[Variation "dragon, classical, Amsterdam variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.Be3 d6 8.Qd2 
h5 9.h3 Bd7 10.f4 Qa5 *

[Event "0xf8fdcee1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Bb4+ 5.Nbd2 O-O 6.Bg2 b6 7.O-O Bb7 8.Ne5 
Nbd7 9.Qa4 Bd6 10.Ndf3 c5 *

[Event "0xf91b5959"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Bxd2+ 7.Qxd2 O-O 8.Nc3
Ne4 9.Qd3 f5 10.O-O Nxc3 *

[Event "0xf964531e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "QGD Slav"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nbd2 c5 6.dxc5 Bxc5 7.Be2 dxc4 8.Nxc4 
Qxd1+ 9.Bxd1 b6 10.Nfe5 Bb7 *

[Event "0xf968c3d4"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 c5 7.Qe2 cxd4 8.exd4 
Be7 9.O-O O-O 10.Nc3 Nc6 *

[Event "0xf969c7c6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A26"]
[Opening "English"]
[Variation "closed system"]

1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Nf3 f5 7.O-O Nf6 *

[Event "0xf99ff78e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E18"]
[Opening "Queen's Indian"]
[Variation "old main line, 7.Nc3"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 O-O 7.O-O Ne4 8.Bd2 Bf6
9.Qc2 Nxd2 10.Qxd2 d6 *

[Event "0xf9c755fe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E54"]
[Opening "Nimzo-Indian"]
[Variation "4.e3, Gligoric system with 7...dc"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 O-O 6.Nf3 d5 7.O-O dxc4 8.Bxc4 
Nc6 9.Bd3 cxd4 10.exd4 Be7 *

[Event "0xf9cea58e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D45"]
[Opening "QGD semi-Slav"]
[Variation "Stoltz variation"]

1.d4 Nf6 2.Nf3 d5 3.c4 c6 4.e3 e6 5.Nc3 Nbd7 6.Qc2 Bd6 7.Bd3 O-O 8.O-O 
dxc4 9.Bxc4 Qe7 10.Rd1 a6 *

[Event "0xf9e6a68"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B07"]
[Opening "Pirc defence"]

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be3 Bg7 5.Qd2 c6 6.Bh6 Bxh6 7.Qxh6 b5 8.Bd3 
Qa5 9.Nf3 b4 10.Ne2 Ba6 *

[Event "0xf9e9076c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C00"]
[Opening "French"]
[Variation "King's Indian attack"]

1.e4 e6 2.d3 d5 3.Qe2 Nf6 4.Nf3 Be7 5.g3 O-O 6.Bg2 b5 7.O-O c5 8.e5 Nfd7 *

[Event "0xfa089e01"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.Qd2 e5 8.d5 Qe8 
9.f3 Nh5 10.Bd3 f5 *

[Event "0xfa1819b2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Capablanca variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 c5 7.O-O O-O 8.Bxb4 
cxb4 9.Qd3 d5 10.Nbd2 dxc4 *

[Event "0xfa1b0fc6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 Na6 7.h4 e5 8.d5 h6 9.
Be3 h5 10.f3 Nh7 *

[Event "0xfa38bb6c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.g3 dxc4 5.Bg2 a6 6.O-O Nc6 7.e3 Rb8 8.Nfd2 Qd7
9.Nxc4 b5 10.Ncd2 Bb7 *

[Event "0xfa3b5a29"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B05"]
[Opening "Alekhine's defence"]
[Variation "modern variation, 4...Bg4"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bg4 5.Be2 e6 6.h3 Bxf3 7.Bxf3 c6 8.O-O 
dxe5 9.dxe5 Nd7 10.Qe2 Qc7 *

[Event "0xfa503481"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B63"]
[Opening "Sicilian"]
[Variation "Richter-Rauzer, Rauzer attack"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 h6 8.Bxf6 
gxf6 9.O-O-O a6 10.Be2 h5 *

[Event "0xfa6632fe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.Bg5 c5 6.c3 cxd4 7.Bxf6 gxf6 *

[Event "0xfa7331a2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.Nc3 d5 7.cxd5 cxd5 8.Ne5 e6
9.O-O Nfd7 10.f4 f6 *

[Event "0xfab327a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B28"]
[Opening "Sicilian"]
[Variation "O'Kelly variation"]

1.e4 c5 2.Nf3 a6 3.c3 d5 4.exd5 Qxd5 5.d4 e6 6.Be2 Nf6 7.O-O Nc6 8.Be3 
cxd4 9.cxd4 Be7 10.Nc3 Qd8 *

[Event "0xfab6abd5"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C82"]
[Opening "Ruy Lopez"]
[Variation "open, Motzko attack, Nenarokov variation"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 
Be6 9.c3 Bc5 10.Qd3 Ne7 *

[Event "0xfad7f705"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E04"]
[Opening "Catalan"]
[Variation "open, 5.Nf3"]

1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 a6 6.O-O Nc6 7.e3 Rb8 8.Nfd2 Na7
9.Nxc4 b5 10.Ne5 c5 11.Bc6+ *

[Event "0xfae20612"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A25"]
[Opening "English"]
[Variation "closed system"]

1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.e3 d6 6.Nge2 f5 7.d4 e4 *

[Event "0xfaf6415d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B75"]
[Opening "Sicilian"]
[Variation "dragon, Yugoslav attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Bc4 
O-O 9.Qe2 Na5 10.Bd3 Nc6 *

[Event "0xfaff7640"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D31"]
[Opening "QGD"]
[Variation "semi-Slav"]

1.d4 d5 2.c4 e6 3.Nc3 c6 4.e3 f5 5.Bd3 Nf6 6.Nf3 *

[Event "0xfb0eb5b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B71"]
[Opening "Sicilian"]
[Variation "dragon, Levenfish; Flohr variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.f4 Nbd7 7.Be2 Bg7 8.O-O 
O-O 9.Kh1 a6 10.Bf3 Nb6 *

[Event "0xfb3d0463"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian"]
[Variation "Averbakh system"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 h6 7.Be3 e5 8.d5 c6 9.
Qd2 h5 10.f3 a6 *

[Event "0xfb3ea6b1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D45"]
[Opening "QGD semi-Slav"]
[Variation "Stoltz variation"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Nc3 Nbd7 6.Qc2 Bd6 7.Bd3 O-O 8.O-O 
dxc4 9.Bxc4 Qe7 10.Rd1 c5 *

[Event "0xfb415b1d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 c5 4.Bg2 cxd4 5.Nxd4 a6 6.O-O Qc7 7.Nb3 Be7 8.Bf4 
d6 9.c4 Nbd7 10.Na3 *

[Event "0xfb42b282"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A81"]
[Opening "Dutch defence"]

1.d4 f5 2.g3 Nf6 3.Bg2 d6 4.Nf3 g6 5.b3 Bg7 6.O-O O-O 7.Bb2 Qe8 8.c4 h6 9.
Nc3 Na6 10.Re1 g5 *

[Event "0xfb451d2c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.h4 Be7 8.Rg1 d5 
9.Bf4 Bb4 *

[Event "0xfb4c6a57"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian"]
[Variation "4.e3 c5, 5.Ne2 (Rubinstein)"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 d5 7.a3 Be7 8.Nf4 
dxc4 9.Bxc4 O-O 10.O-O Nc6 *

[Event "0xfb5bba00"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian"]
[Variation "Scheveningen, 6.f4"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 a6 7.Be2 Be7 8.O-O Qc7
9.Kh1 Nc6 10.Nb3 *

[Event "0xfb6f3b9e"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 Nf6 4.e5 Nd5 5.Bxc4 Nb6 6.Bd3 Nc6 7.Be3 Be6 8.Nc3 
Bd5 9.Nf3 e6 10.O-O Bc4 *

[Event "0xfb81c35c"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A96"]
[Opening "Dutch"]
[Variation "classical variation"]

1.d4 f5 2.g3 Nf6 3.Bg2 e6 4.c4 Be7 5.Nf3 O-O 6.O-O d6 7.Nc3 a5 8.Qc2 Nc6 
9.e4 fxe4 10.Nxe4 e5 *

[Event "0xfbac1e93"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B93"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.f4"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 e6 7.Qf3 Qb6 8.Nb3 Nc6
9.Be3 Qc7 10.O-O-O b5 *

[Event "0xfbd3939"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A21"]
[Opening "English opening"]

1.c4 e5 2.Nc3 d6 3.Nf3 f5 4.d4 e4 5.Bg5 Nf6 6.Nd2 h6 7.Bxf6 Qxf6 *

[Event "0xfbe14d7f"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C88"]
[Opening "Ruy Lopez"]
[Variation "closed, anti-Marshall 8.a4"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.a4 Bb7
9.d3 d6 10.Nbd2 Re8 *

[Event "0xfbf2cfcc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D78"]
[Opening "Neo-Gruenfeld, 6.O-O c6"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.c4 c6 7.cxd5 Nxd5 8.Nc3 
Nb6 9.h3 Be6 10.e4 Qd7 *

[Event "0xfc17404b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D73"]
[Opening "Neo-Gruenfeld, 5.Nf3"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 d5 5.c4 dxc4 6.Na3 c3 7.bxc3 O-O 8.O-O c5
9.e3 Nc6 10.Qe2 Bf5 *

[Event "0xfc6a8c39"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B23"]
[Opening "Sicilian"]
[Variation "Grand Prix attack"]

1.e4 c5 2.Nc3 Nc6 3.f4 d6 4.Bb5 Bd7 5.Nf3 a6 6.Bxc6 Bxc6 7.O-O Nf6 8.d3 g6
9.Qe1 Bg7 10.Bd2 Qd7 *

[Event "0xfc7cb5ca"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian"]
[Variation "Scheveningen, Keres attack"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4 h6 7.h4 Nc6 8.Rg1 h5 
9.gxh5 Nxh5 10.Be3 e5 *

[Event "0xfcc6a592"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B04"]
[Opening "Alekhine's defence"]
[Variation "modern, fianchetto variation"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 g6 5.Bc4 c6 6.O-O Bg7 7.h3 O-O 8.Qe2 Bf5 
9.Re1 dxe5 10.dxe5 Nd7 *

[Event "0xfcca59b6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A54"]
[Opening "Old Indian"]
[Variation "Ukrainian variation"]

1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.dxe5 dxe5 5.Qxd8+ Kxd8 6.Nf3 Nfd7 *

[Event "0xfcf149d3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.b3 Nc6 7.Bb2 e5 8.dxe5 Nd7
9.e4 *

[Event "0xfcfab6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]

1.d4 d5 2.c4 dxc4 3.e4 e5 4.Nf3 Bb4+ 5.Bd2 Bxd2+ 6.Qxd2 exd4 7.Qxd4 Nf6 8.
Qxd8+ Kxd8 9.Nc3 Be6 10.Ne5 Nc6 *

[Event "0xfd139eb3"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 e6 5.Bd3 dxc4 6.Bxc4 a6 7.O-O c5 8.Bd3 Nbd7
9.Re1 b5 10.a4 bxa4 *

[Event "0xfd219c2a"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.Bf4 c5 4.c3 cxd4 5.cxd4 b5 6.e3 a6 7.Bd3 Bb7 *

[Event "0xfd3845b0"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B00"]
[Opening "King's pawn opening"]

1.e4 d6 2.d4 Nf6 3.Bd3 g6 4.c3 Bg7 5.Nf3 O-O 6.O-O Nc6 7.Re1 e5 8.h3 Bd7 
9.Be3 Re8 10.Nbd2 Nh5 *

[Event "0xfd3bcf22"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 c6 7.Bd3 Nbd7 8.Qc2 
h6 9.Bh4 O-O 10.Nge2 Re8 *

[Event "0xfd41546b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B46"]
[Opening "Sicilian"]
[Variation "Taimanov variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 Qc7 7.Bg2 Nf6 8.O-O 
Be7 9.b3 O-O 10.Bb2 Rd8 *

[Event "0xfda08144"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B40"]
[Opening "Sicilian"]
[Variation "Anderssen variation"]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Ndb5 Bb4 7.a3 Bxc3+ 8.
Nxc3 d5 9.exd5 Nxd5 10.Bd2 O-O *

[Event "0xfddff1df"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A46"]
[Opening "Queen's pawn game"]

1.d4 Nf6 2.Nf3 e6 3.g3 b5 4.Bg2 Bb7 5.O-O c5 6.c3 h6 7.a4 b4 8.a5 cxd4 9.
cxd4 Be7 10.Nbd2 O-O *

[Event "0xfdee88eb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c6 6.Nc3 d5 7.cxd5 cxd5 8.Ne5 e6
9.O-O Nfd7 10.Nf3 Nc6 *

[Event "0xfdf09cfe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B58"]
[Opening "Sicilian"]
[Variation "Boleslavsky, Louma variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 e5 7.Nxc6 bxc6 8.Qd3
Be7 9.Qg3 O-O 10.O-O Nd7 *

[Event "0xfe29c75"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B58"]
[Opening "Sicilian"]
[Variation "Boleslavsky variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5 7.Nf3 Be7 8.O-O 
O-O 9.Bg5 Be6 10.Qd2 Rc8 *

[Event "0xfe39f428"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A12"]
[Opening "English"]
[Variation "London defensive system"]

1.c4 c6 2.Nf3 d5 3.b3 Nf6 4.g3 Bf5 5.Bg2 e6 6.Bb2 Nbd7 7.O-O h6 8.d3 Be7 
9.Nc3 O-O 10.Qc2 Bh7 11.Rad1 Qc7 12.e4 *

[Event "0xfe728b9b"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni defence"]

1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Bf4 Bg7 8.e4 O-O 
9.Nd2 Bg4 10.Be2 Bxe2 *

[Event "0xfe7c91bb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Be3 c5 8.Qd2 
cxd4 9.cxd4 Nc6 10.Rd1 e6 *

[Event "0xfe8922c8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, Benko variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Qb6 7.Nb3 e6 8.O-O 
Be7 9.Kh1 O-O 10.f4 Qc7 *

[Event "0xfea0c8cc"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E38"]
[Opening "Nimzo-Indian"]
[Variation "classical, 4...c5"]

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 Na6 6.a3 Qa5 7.Bd2 Nxc5 8.Nf3 
d6 9.Nb5 Bxd2+ 10.Nxd2 Qb6 *

[Event "0xfec4cff6"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B53"]
[Opening "Sicilian, Chekhover variation"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Bd7 6.Bxc6 bxc6 7.O-O e5 8.Qd3
Nf6 9.c4 Be7 10.Nc3 O-O *

[Event "0xfecf0895"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A40"]
[Opening "Modern defence"]

1.d4 g6 2.c4 Bg7 3.Nf3 c5 4.e4 Nc6 5.d5 Nd4 6.Nxd4 Bxd4 7.Bd3 d6 *

[Event "0xfed256eb"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C88"]
[Opening "Ruy Lopez"]
[Variation "closed, anti-Marshall 8.a4"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.a4 Bb7
9.d3 d6 10.Nbd2 Qd7 *

[Event "0xfede437d"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B57"]
[Opening "Sicilian"]
[Variation "Sozin, Benko variation"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Qb6 7.Nb3 e6 8.O-O 
Be7 9.Kh1 O-O 10.f4 a6 *

[Event "0xfef0f2b8"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E16"]
[Opening "Queen's Indian"]
[Variation "Riumin variation"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.Nc3 O-O 8.O-O 
Na6 9.Bf4 d5 10.Ne5 c5 *

[Event "0xfef9b1dd"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A17"]
[Opening "English"]
[Variation "Nimzo-English opening"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 Bb4 4.a3 Bxc3 5.bxc3 c5 6.g3 Nc6 7.d3 d5 8.cxd5 
exd5 9.Bg2 O-O *

[Event "0xff076afe"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD"]
[Variation "exchange, positional line"]

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 c6 7.Bd3 Nbd7 8.Nge2 
Nh5 9.Bxe7 Qxe7 10.Rb1 g6 *

[Event "0xff11487"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A49"]
[Opening "King's Indian"]
[Variation "fianchetto without c4"]

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Re1 Nbd7 7.e4 e5 8.dxe5 
dxe5 9.Nbd2 Re8 10.Nc4 Qe7 *

[Event "0xff128dd2"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D27"]
[Opening "QGA"]
[Variation "classical, 6...a6"]

1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 e6 5.Bxc4 c5 6.O-O Nf6 7.Bd3 Nbd7 8.Qe2 b6
9.Nc3 Bb7 10.Rd1 Qb8 *

[Event "0xff154269"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA"]
[Variation "classical variation"]

1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.Qe2 a6 7.dxc5 Bxc5 8.O-O 
Qc7 9.Nbd2 Nc6 10.Bd3 *

[Event "0xff40b4ec"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld"]
[Variation "5.Bg5"]

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Bg5 Ne4 6.cxd5 Nxg5 7.Nxg5 e6 8.Qd2 
h6 9.Nh3 exd5 10.Nf4 *

[Event "0xff81adb1"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B35"]
[Opening "Sicilian"]
[Variation "accelerated fianchetto, modern variation with Bc4"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 Qa5 8.O-O 
Ng4 9.Nb3 Qh5 10.Bf4 Be5 *

[Event "0xffdbdee7"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E17"]
[Opening "Queen's Indian"]
[Variation "anti-Queen's Indian system"]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.Nc3 O-O 7.Qc2 d5 8.cxd5 
exd5 9.O-O Na6 10.Rd1 Re8 *

[Event "0xfff1fd46"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf, Lipnitzky attack"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.Bb3 Nbd7 8.Bg5 
Qa5 9.Qd2 Be7 10.O-O-O Nc5 *

[Event "0xfffaf350"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A96"]
[Opening "Dutch"]
[Variation "classical variation"]

1.c4 f5 2.Nf3 Nf6 3.g3 d6 4.d4 e6 5.Bg2 Be7 6.O-O O-O 7.b3 a5 8.Nc3 Qe8 9.
Bb2 c6 10.e3 Na6 *

