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

Book: ∞ / 0

# move proof disproof
1 Nf6 0
2 e5 0
3 Bb7 0
4 Kg6 0
5 g6 0
6 Ba6 0
7 Bd7 0
8 h5 0
9 a6 0
10 g5 0
11 Rb8 0