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

Book: ∞ / 0

# move proof disproof
1 Rb8 0
2 Bd7 0
3 Rh7 0
4 h5 0
5 Ba6 0
6 a6 0
7 e5 0
8 Bb7 0
9 Nf6 0
10 a5 0