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

Book: ∞ / 0

# move proof disproof
1 f5 0
2 a5 0
3 Kc6 0
4 Rg8 0
5 Kd6 0
6 Ke6 0
7 Bh6 0
8 Nc6 0
9 Ra7 0
10 Bb7 0
11 Bg7 0
12 e6 0
13 f6 0
14 Kc7 0
15 Kd8 0
16 g4 0
17 Nf6 0
18 Ke8 0
19 e5 0