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

Book: ∞ / 0

# move proof disproof
1 Kc7 0
2 Ke8 0
3 Kd8 0
4 Bb7 0
5 c5 0
6 Ke7 0
7 Kd6 0
8 h6 0
9 h5 0
10 Na6 0
11 e5 0
12 Ba6 0