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

Book: ∞ / 0

# move proof disproof
1 Kf6 0
2 Kg6 0
3 e5 0
4 Ke8 0
5 Nf6 0
6 a5 0
7 Rh7 0
8 g6 0
9 Bb7 0
10 Ba6 0
11 a6 0
12 g5 0
13 h5 0
14 Bd7 0
15 Rb8 0