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

Book: ∞ / 0

# move proof disproof
1 Bb7 0
2 Nc6 0
3 Kd6 0
4 a5 0
5 d4 0
6 e4 0
7 Ke6 0
8 Ke7 0
9 Ke8 0
10 Kd8 0
11 Kc7 0
12 Ra7 0
13 Kc6 0