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

Book: ∞ / 0

# move proof disproof
1 Rd8 0
2 Rb8 0
3 Ng8 0
4 c5 0
5 Ng4 0
6 Nf7 0
7 Nf5 0
8 a5 0
9 a6 0
10 Rc8 0
11 Re8 0
12 Bg7 0