
Bihasa 3.2 by Ferdinand Mosca has the perft command. Bihasa agrees in Perft(6) of both Capablanca and Gothic variations.

Capablanca variation:

perft 6

8  r n a b q k b c n r
7  o o o o o o o o o o
6  . . . . . . . . . .
5  . . . . . . . . . .
4  . . . . . . . . . .
3  . . . . . . . . . .
2  P P P P P P P P P P
1  R N A B Q K B C N R

   a b c d e f g h i j

rnabqkbcnr/pppppppppp/10/10/10/10/PPPPPPPPPP/RNABQKBCNR w KQkq -


 i2i3 - 24802715
 i2i4 - 26996704
 h2h3 - 31717791
 h2h4 - 35870856
 a2a3 - 28701556
 a2a4 - 32556619
 e2e3 - 43107759
 e2e4 - 46818840
 c2c3 - 30363782
 c2c4 - 32155480
 j2j3 - 28588868
 j2j4 - 32465690
 b2b3 - 28126504
 b2b4 - 30369092
 d2d3 - 46397175
 d2d4 - 48325852
 f2f3 - 52623654
 f2f4 - 52678872
 g2g3 - 27723215
 g2g4 - 29988375
 b1a3 - 28723639
 b1c3 - 32058743
 i1h3 - 33345105
 i1j3 - 30250326
 c1b3 - 35660984
 c1d3 - 39217127
 h1g3 - 53499031
 h1i3 - 52668083

 Perft 6 Summary
 Count: 1015802437
 Time: 301.81 sec
 
