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

Book: ∞ / 0

# move proof disproof
1 Bg7 0
2 Rc8 0
3 f5 0
4 Rd8 0
5 e5 0
6 h5 0
7 e6 0
8 Ra8 0
9 Rb8 0