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

Book: ∞ / 0

# move proof disproof
1 Re8 0
2 Rf8 0
3 h5 0
4 Bd7 0
5 Rg8 0
6 e5 0
7 Rd8 0
8 h6 0
9 Bb7 0