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

Book: ∞ / 0

# move proof disproof
1 e5 0
2 Ra8 0
3 Rd8 0
4 Rc8 0
5 f6 0
6 f5 0
7 Bh6 0
8 e6 0
9 Rb8 0
10 Bg7 0