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

Book: ∞ / 0

# move proof disproof
1 Kf8 0
2 Ke8 0
3 Kd8 0
4 g5 0
5 Kd6 0
6 e5 0
7 g6 0
8 Kf6 0
9 Nh6 0
10 Ra7 0
11 Kf7 0
12 Rb8 0
13 d6 0
14 Bb7 0
15 Nf6 0
16 d5 0