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