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

Book: ∞ / 0

# move proof disproof
1 f6 0
2 Be7 0
3 g6 0
4 b5 0
5 g5 0
6 f5 0
7 Nh6 0
8 b3 0
9 b6 0
10 d5 0
11 Ne7 0
12 Nf6 0
13 d6 0
14 Bd6 0
15 Bc5 0
16 Nc6 0
17 Kd8 0
18 Ke7 0
19 a6 0
20 Na6 0