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

Book: ∞ / 0

# move proof disproof
1 Ke8 0
2 Kd8 0
3 Kc8 0
4 Kc7 0
5 Ke6 0
6 Re8 0
7 Ng8 0
8 Ng4 0
9 c5 0
10 Bg7 0
11 Rb8 0
12 a6 0
13 Kd6 0
14 a5 0
15 f6 0
16 f5 0
17 e6 0
18 Rd8 0
19 Rc8 0
20 Nf5 0