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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 Bb7 0
3 Bh6 0
4 d5 0
5 Kd5 0
6 Kf6 0
7 Rb8 0
8 Ke5 0
9 Kf5 0
10 Kf7 0
11 Kd6 0
12 d6 0
13 g5 0
14 Bg7 0
15 Ba6 0