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

Book: ∞ / 0

# move proof disproof
1 Kb7 0
2 Kc7 0
3 f6 0
4 f5 0
5 Nf5 0
6 Ng8 0
7 Kb8 0
8 Kd8 0
9 Kd7 0
10 a6 0
11 Rb8 0
12 a5 0
13 e6 0
14 Bg7 0
15 Ng4 0