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

Book: ∞ / 0

# move proof disproof
1 a5 0
2 h5 0
3 Nh6 0
4 g6 0
5 a6 0
6 h6 0
7 Bd7 0
8 Ne7 0
9 Nf6 0
10 e5 0
11 Bb7 0
12 Rb8 0
13 Ba6 0