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

Book: ∞ / 0

# move proof disproof
1 a5 0
2 Kh6 0
3 Nh6 0
4 Re8 0
5 a6 0
6 Kg6 0
7 Kf6 0
8 h6 0
9 Kf7 0
10 Rd8 0
11 Rc8 0
12 h5 0
13 Nf6 0
14 Rb8 0