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

Book: ∞ / 0

# move proof disproof
1 Rd7 0
2 a5 0
3 Nf6 0
4 Bg7 0
5 Rb7 0
6 Ra8 0
7 Rc7 0
8 Bh6 0
9 e6 0
10 Nd7 0
11 Nc6 0
12 Nh6 0