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

Book: ∞ / 0

# move proof disproof
1 Kd6 0
2 Ke6 0
3 Kc7 0
4 Ke8 0
5 Ke7 0
6 Ra7 0
7 Kc8 0
8 Kd8 0
9 Bc8 0
10 c5 0
11 a5 0