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

Book: ∞ / 0

# move proof disproof
1 Ke6 0
2 f6 0
3 a6 0
4 a5 0
5 c5 0
6 f5 0
7 Bb7 0
8 Na6 0
9 Kd6 0
10 Ke8 0
11 Kd8 0
12 Ke7 0
13 Kc7 0
14 Ba6 0