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

Book: ∞ / 0

# move proof disproof
1 f5 0
2 Ng5 0
3 a5 0
4 f6 0
5 e5 0
6 Re8 0
7 Rd8 0
8 a6 0
9 Nf6 0
10 Kd6 0
11 Ke6 0
12 c5 0
13 Rc8 0
14 Rb8 0
15 Bg7 0
16 Bh6 0
17 e6 0
18 Kc7 0
19 Kc8 0
20 Kd8 0
21 Ke8 0
22 Rg8 0