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

Book: ∞ / 0

# move proof disproof
1 f6 0
2 f5 0
3 Bh6 0
4 a5 0
5 a6 0
6 g4 0
7 Ke6 0
8 e5 0
9 Bg7 0
10 Bb7 0
11 Rg8 0
12 Ba6 0
13 Nf6 0
14 Kd6 0
15 Kc6 0
16 Na6 0
17 Kc7 0
18 Kd8 0
19 Ke8 0
20 e6 0
21 Nc6 0