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

Book: ∞ / 0

# move proof disproof
1 Re8 0
2 Rd8 0
3 Kc7 0
4 Kc8 0
5 Kd8 0
6 Ke8 0
7 Bg7 0
8 c5 0
9 Ke6 0
10 Kd6 0
11 a6 0
12 e6 0
13 f6 0
14 f5 0
15 a5 0
16 Bh6 0
17 Rb8 0
18 Rc8 0