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

Book: ∞ / 0

# move proof disproof
1 Ke7 0
2 Ke8 0
3 Kd8 0
4 Kc7 0
5 g4 0
6 a6 0
7 a5 0
8 Ke6 0
9 Kd6 0
10 Kc6 0
11 Rb8 0
12 Bb7 0
13 Ba6 0