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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 Kf4 0
3 h5 0
4 Ke4 0
5 Kd5 0
6 Rg8 0
7 h6 0
8 g6 0
9 Kf5 0
10 d6 0
11 d5 0
12 g5 0
13 Kd6 0
14 e6 0
15 Ba6 0
16 Rb8 0
17 Kd4 0
18 Ke6 0
19 Kf6 0
20 Bb7 0