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

Book: ∞ / 0

# move proof disproof
1 Kd8 0
2 Kd7 0
3 a6 0
4 Nf6 0
5 b4 0
6 a5 0
7 Bg7 0
8 f6 0
9 f5 0
10 Rd8 0
11 Rc8 0
12 Rb8 0
13 e6 0
14 Nh6 0
15 Bh6 0