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

Book: ∞ / 0

# move proof disproof
1 h5 0
2 a6 0
3 e5 0
4 Ba6 0
5 Bd7 0
6 Bb7 0
7 Rg8 0
8 Bg7 0
9 Rb8 0
10 a5 0