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

Book: 39 / 342

# move proof disproof
1 c5 172 39
2 a5 107 39
3 g4 46 39
4 h5 2 49
5 Bb7 1 49
6 Bg7 1 50
7 c6 2 52
8 f6 1 52
9 h6 1 52
10 f5 1 52
11 Nf6 1 52
12 Nh6 1 52
13 Bh6 1 52
14 d5 1 54
15 d6 1 54
16 e6 1 55
17 e5 1 55
18 Nc6 1 55