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 d5 0
4 d6 0
5 g6 0
6 g5 0
7 Ba6 0
8 h5 0
9 h6 0
10 Rb8 0
11 Nf6 0
12 Ne7 0
13 Nh6 0