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

Book: ∞ / 0

# move proof disproof
1 f5 0
2 h5 0
3 Bf5 0
4 Nf6 0
5 Bg4 0
6 Bh3 0
7 c5 0
8 e5 0
9 Rb8 0
10 a5 0
11 e6 0
12 Rh8 0
13 Bd7 0
14 g6 0
15 f6 0
16 c6 0
17 a6 0
18 Ba6 0
19 Be6 0
20 Bb7 0
21 g5 0