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

Book: ∞ / 0

# move proof disproof
1 Kc6 0
2 c6 0
3 Kd6 0
4 Nc6 0
5 e6 0
6 Bh6 0
7 Bg7 0
8 Nh6 0
9 Bb7 0
10 Nf6 0
11 Ra7 0
12 Kd8 0
13 Ke6 0
14 a5 0
15 c5 0
16 Ke8 0