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

Book: ∞ / 0

# move proof disproof
1 a5 0
2 Kf7 0
3 Kd7 0
4 Bb7 0
5 Nf6 0
6 Nh6 0
7 Kd8 0
8 Ra7 0
9 h6 0
10 g6 0
11 g5 0
12 e5 0
13 h5 0
14 Bd7 0
15 Rb8 0