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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 e6 0
3 f6 0
4 h6 0
5 a5 0
6 Bb2 0
7 Ke6 0
8 Ba6 0
9 Nh6 0
10 Nf6 0
11 h5 0
12 f5 0
13 c2 0
14 e5 0
15 Bb7 0
16 Rb8 0
17 Kc6 0
18 Kd6 0
19 Kc7 0
20 Kd8 0
21 Ke8 0