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

Book: ∞ / 0

# move proof disproof
1 f5 0
2 Ke6 0
3 Kc6 0
4 Kc7 0
5 Nc7 0
6 Rb8 0
7 Kd8 0
8 Ke8 0
9 Bb7 0
10 e6 0
11 Rg8 0
12 e5 0
13 Kd6 0
14 Nb4 0
15 Bg7 0
16 Nf6 0
17 Nc5 0
18 Nb8 0
19 Bh6 0
20 f6 0