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

Book: ∞ / 0

# move proof disproof
1 Rb8 0
2 Rd8 0
3 Nd7 0
4 h6 0
5 a6 0
6 g5 0
7 c6 0
8 h5 0
9 Rc8 0
10 Re8 0
11 a5 0
12 c5 0