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

Book: 72 / 230

# move proof disproof
1 a5 21 72
2 c5 20 72
3 Nc6 4 72
4 Bh6 2 72
5 d5 1 72
6 g4 97 73
7 e6 1 73
8 e5 1 73
9 d6 1 74
10 h5 9 75
11 Bg7 1 75
12 f6 17 77
13 c6 19 80
14 Nh6 17 80
15 h6 16 80
16 f5 1 86
17 Nf6 1 86
18 Bb7 1 91