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

Book: ∞ / 0

# move proof disproof
1 a5 0
2 e6 0
3 e5 0
4 a6 0
5 Nf6 0
6 f5 0
7 Nh6 0
8 Rb8 0
9 d6 0
10 d5 0
11 g6 0
12 f6 0
13 g5 0
14 Kd8 0
15 b6 0
16 b5 0