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

Book: ∞ / 0

# move proof disproof
1 c5 0
2 Kd7 0
3 Kb7 0
4 Kc7 0
5 Kb8 0
6 Kd8 0
7 Rb8 0
8 a6 0
9 Nh6 0
10 a5 0
11 Bh6 0
12 Nf6 0
13 f6 0
14 f5 0
15 Bg7 0
16 e6 0