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

Book: ∞ / 0

# move proof disproof
1 f6 0
2 c6 0
3 Rg8 0
4 Kf6 0
5 Bb7 0
6 Nc6 0
7 Bh6 0
8 Kd5 0
9 Kd7 0
10 Ra7 0
11 Bd7 0
12 c5 0
13 Ke5 0
14 Kf5 0
15 Nf6 0
16 g4 0
17 f5 0
18 Kd6 0
19 Nd7 0
20 Bg7 0