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

Book: ∞ / 0

# move proof disproof
1 Kc7 0
2 Ke7 0
3 Kd8 0
4 Ke8 0
5 Kc6 0
6 Kd6 0
7 Ra7 0
8 Bb7 0
9 a5 0
10 Nc6 0
11 Ke6 0