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

Book: ∞ / 0

# move proof disproof
1 Re8 0
2 Rd8 0
3 Ra8 0
4 h5 0
5 Rg8 0
6 Bb7 0
7 d5 0
8 d6 0
9 Rf8 0
10 Rb7 0
11 Rc7 0