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

Book: ∞ / 0

# move proof disproof
1 Ng8 0
2 Ng4 0
3 Nf5 0
4 Bg7 0
5 Kd8 0
6 Kb8 0
7 Kd7 0
8 Kc7 0
9 Kb7 0
10 Rb8 0
11 a5 0
12 a6 0
13 b4 0
14 f6 0
15 f5 0
16 e6 0