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

Book: ∞ / 0

# move proof disproof
1 c5 0
2 c6 0
3 Bb7 0
4 Ke6 0
5 Ra7 0
6 Nc6 0
7 Ke8 0
8 Kd8 0
9 h3 0
10 a5 0
11 Kc6 0
12 Ke7 0
13 Kd6 0