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

Book: ∞ / 0

# move proof disproof
1 f6 0
2 Kd5 0
3 Kf5 0
4 Ba6 0
5 c5 0
6 Nb6 0
7 f5 0
8 Ke7 0
9 Ne5 0
10 Bb7 0
11 Nf8 0
12 Nb8 0
13 Ke5 0
14 Nc5 0
15 a5 0
16 Kf6 0
17 Kd6 0
18 a6 0
19 c6 0
20 Nf6 0
21 Rb8 0