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

Book: 94 / 176

# move proof disproof
1 e5 1 94
2 e6 1 94
3 c6 19 95
4 d6 2 95
5 Bb7 1 95
6 f6 17 96
7 h5 1 96
8 Nc6 22 97
9 Nh6 17 97
10 h6 16 97
11 Nf6 3 105
12 Bh6 16 106
13 d5 1 108
14 f5 1 108
15 Bg7 1 110
16 c5 19 111
17 g4 17 114
18 a5 21 134