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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 Ke6 0
3 Kg7 0
4 Bh6 0
5 Bg7 0
6 Kf7 0
7 g5 0
8 Ba6 0
9 e6 0
10 d5 0
11 d6 0
12 Kg5 0
13 Kf5 0
14 Ke5 0
15 Rb8 0
16 a5 0
17 Bb7 0
18 e5 0