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

Book: ∞ / 0

# move proof disproof
1 Re8 0
2 Kc6 0
3 Kc7 0
4 Rd8 0
5 Ra7 0
6 Nf5 0
7 Ng8 0
8 Rc8 0
9 Ke8 0
10 Kd8 0
11 Kc8 0
12 Kd6 0
13 Ng4 0
14 Bg7 0
15 Ke6 0
16 a5 0
17 Rb8 0
18 e6 0
19 f6 0
20 f5 0