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

Book: ∞ / 0

# move proof disproof
1 Kc7 0
2 Ng4 0
3 Nf5 0
4 Ng8 0
5 Kc8 0
6 Ke8 0
7 Kd7 0
8 a6 0
9 Bg7 0
10 e6 0
11 Rc8 0
12 Rb8 0
13 a5 0
14 f6 0
15 f5 0