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

Book: ∞ / 0

# move proof disproof
1 Ke5 0
2 Bf8 0
3 f5 0
4 Kf5 0
5 g4 0
6 Nf6 0
7 Kd6 0
8 Bg7 0
9 Nd7 0
10 Na6 0
11 f6 0
12 Kd5 0
13 a6 0
14 Kf6 0
15 Kd7 0