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

Book: ∞ / 0

# move proof disproof
1 Rd8 0
2 e6 0
3 e5 0
4 Rc8 0
5 h4 0
6 Bg7 0
7 Bh6 0
8 Rb8 0
9 Ra8 0