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

Book: ∞ / 0

# move proof disproof
1 f6 0
2 a6 0
3 c6 0
4 Nd7 0
5 Kd7 0
6 Ng5 0
7 a5 0
8 Kf6 0
9 Kd6 0
10 c5 0
11 Bb7 0
12 Bd7 0
13 Nc6 0
14 Na6 0
15 Bh6 0
16 Bg7 0
17 Rg8 0
18 Ba6 0
19 Nf6 0
20 f5 0
21 Kf5 0
22 Ke5 0
23 Kd5 0