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

Book: 59 / 228

# move proof disproof
1 g4 110 59
2 Nc6 2 59
3 a5 1 59
4 c5 1 59
5 Bh6 2 60
6 e6 1 60
7 e5 1 60
8 d5 1 60
9 f5 1 62
10 h5 16 64
11 f6 17 73
12 d6 20 76
13 c6 19 76
14 h6 16 76
15 Nh6 17 81
16 Bb7 1 81
17 Bg7 1 82
18 Nf6 1 87