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

Book: ∞ / 0

# move proof disproof
1 h5 0
2 Rg8 0
3 f5 0
4 b6 0
5 f6 0
6 Kd8 0
7 a6 0
8 e6 0
9 a5 0
10 e5 0
11 Nc6 0
12 Na6 0
13 d5 0
14 d6 0
15 Bg7 0