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

Book: ∞ / 0

# move proof disproof
1 Rd8 0
2 Re8 0
3 Ra7 0
4 d5 0
5 d6 0
6 e5 0
7 Rf8 0
8 Rg8 0
9 h5 0
10 Bb7 0
11 Rb8 0