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

Book: ∞ / 0

# move proof disproof
1 Bc8 0
2 Be8 0
3 a6 0
4 c5 0
5 Ba4 0
6 Nc6 0
7 Na6 0
8 Bb5 0
9 c6 0
10 a5 0
11 Ke5 0
12 Kd5 0
13 Kf5 0
14 f5 0
15 Bc6 0
16 Ke7 0
17 Kf7 0
18 Kd6 0