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

Book: ∞ / 0

# move proof disproof
1 Ba6 0
2 a6 0
3 c6 0
4 e4 0
5 c5 0
6 Bb7 0
7 Nb8 0
8 Nf8 0
9 Nb6 0
10 Nf6 0
11 Rb8 0
12 a5 0
13 Nc5 0