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

Book: ∞ / 0

# move proof disproof
1 a5 0
2 Kf6 0
3 Kg6 0
4 a6 0
5 Rh7 0
6 Ke8 0
7 Bd7 0
8 Ba6 0
9 Nf6 0
10 e5 0
11 Bb7 0
12 g5 0
13 h5 0
14 g6 0
15 Rb8 0