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

Book: ∞ / 0

# move proof disproof
1 f6 0
2 Ke6 0
3 h5 0
4 Bf6 0
5 Nc6 0
6 Na6 0
7 c5 0
8 Kc6 0
9 Kd6 0
10 Ke7 0
11 Kd8 0
12 Ke8 0
13 Bb7 0
14 Nf6 0
15 f5 0
16 e4 0
17 Bh6 0
18 Bf8 0
19 h6 0
20 Ba6 0
21 a5 0
22 a6 0
23 c6 0
24 Ne7 0
25 Nh6 0