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 Ne7 0
4 h6 0
5 a6 0
6 Bf6 0
7 Bb7 0
8 Nf6 0
9 Kd6 0
10 Bh6 0
11 a5 0
12 Ba6 0
13 Ke6 0
14 f6 0
15 Na6 0
16 Nh6 0
17 Bf8 0
18 c5 0
19 Ke8 0
20 Kd8 0
21 Ke7 0
22 Kc7 0