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

Book: ∞ / 0

# move proof disproof
1 f5 0
2 h5 0
3 Ra7 0
4 g5 0
5 Rb8 0
6 c4 0
7 g6 0
8 Ke6 0
9 h6 0
10 Nh6 0
11 Bb7 0
12 Kc6 0
13 Kd6 0
14 Kc7 0
15 Kd8 0
16 Ke8 0
17 e5 0
18 e6 0