Click on the third or sixth rank to set the en passant target square.

Book: 1928 / 1972

# move proof disproof
1 g5 172 1928
2 Nh6 138 1938
3 b5 1219 2223
4 c5 127 2251
5 b6 111 2280
6 Nc6 106 2504
7 e6 99 3449
8 c6 0
9 h6 0
10 Nf6 0
11 h5 0
12 f6 0
13 a6 0
14 a5 0
15 f5 0
16 e5 0
17 Na6 0
18 g6 0
19 d5 0
20 d6 0