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

Book: 44 / 279

# move proof disproof
1 h5 71 44
2 Nc6 1 44
3 Bg7 1 44
4 f5 100 45
5 c5 1 45
6 a5 1 45
7 Bh6 1 45
8 e5 1 45
9 e6 1 45
10 Nh6 1 45
11 Nf6 1 45
12 d6 1 45
13 d5 1 46
14 c6 35 47
15 h6 29 48
16 f6 32 52
17 Bb7 1 62