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

Book: ∞ / 0

# move proof disproof
1 d5 0
2 Ra8 0
3 h5 0
4 Ra6 0
5 Bb7 0
6 Rc7 0
7 d6 0
8 Ba6 0
9 Rb7 0