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

Book: ∞ / 0

# move proof disproof
1 g6 0
2 Kc6 0
3 e5 0
4 a5 0
5 Kd6 0
6 e6 0
7 Ke8 0
8 Kd8 0
9 Rh8 0
10 Ke6 0
11 g5 0
12 Bb7 0
13 Kc7 0
14 Ra7 0
15 Nc6 0