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

Book: ∞ / 0

# move proof disproof
1 Nh6 0
2 Rc8 0
3 b6 0
4 Bg7 0
5 b5 0
6 a6 0
7 Re8 0
8 Rb8 0
9 Bh6 0
10 a5 0
11 Nf6 0
12 Rd8 0