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

Book: ∞ / 0

# move proof disproof
1 Ra7 0
2 Bd7 0
3 Bb7 0
4 Rg8 0
5 h6 0
6 g5 0
7 h5 0
8 e5 0
9 Bh6 0
10 Rb8 0
11 Bg7 0
12 a5 0