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

Book: ∞ / 0

# move proof disproof
1 g5 0
2 e5 0
3 e6 0
4 b5 0
5 Nf6 0
6 Nc6 0
7 b6 0
8 d6 0
9 Na6 0
10 g6 0
11 f6 0
12 a6 0
13 Nh6 0
14 d5 0
15 f5 0
16 Kd8 0