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

Book: ∞ / 0

# move proof disproof
1 g5 0
2 Nh6 0
3 d5 0
4 d6 0
5 Kd8 0
6 Kf7 0
7 b6 0
8 a5 0
9 f5 0
10 e6 0
11 e5 0
12 g6 0
13 Nc6 0
14 Na6 0
15 a6 0