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

Book: ∞ / 0

# move proof disproof
1 Kc6 0
2 Ra7 0
3 e6 0
4 Nf6 0
5 Bh6 0
6 Nc6 0
7 Bb7 0
8 Kd6 0
9 Bg7 0
10 Ke6 0
11 Nh6 0
12 Ke8 0
13 Kd8 0
14 Kc7 0
15 e5 0
16 a5 0