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 Kd8 0
4 Kf7 0
5 Bb7 0
6 Ba6 0
7 h5 0
8 Bg7 0
9 d5 0
10 d6 0
11 Rg8 0
12 e5 0
13 Rb8 0