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

Book: ∞ / 0

# move proof disproof
1 Rb8 0
2 c5 0
3 Ng4 0
4 f6 0
5 f5 0
6 Ng8 0
7 Kc8 0
8 Kd7 0
9 a6 0
10 Bg7 0
11 c6 0
12 Nf5 0
13 a5 0
14 Rc8 0
15 Ke8 0
16 e6 0