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

Book: ∞ / 0

# move proof disproof
1 Ke5 0
2 Kf5 0
3 Kd7 0
4 h6 0
5 Rg8 0
6 Ra7 0
7 Bb7 0
8 g5 0
9 a5 0
10 h5 0
11 g6 0
12 Kf7 0
13 Kf6 0
14 Kd6 0
15 Rb8 0
16 Bd7 0