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

Book: ∞ / 0

# move proof disproof
1 Nc6 0
2 Ra7 0
3 f6 0
4 Ke6 0
5 a5 0
6 Bb7 0
7 d5 0
8 f5 0
9 Kc7 0
10 Ke7 0
11 Kd8 0
12 Ke8 0
13 Kc6 0