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

Book: ∞ / 0

# move proof disproof
1 f5 0
2 g5 0
3 a5 0
4 c5 0
5 g6 0
6 Bb7 0
7 f6 0
8 Kd8 0
9 e5 0
10 Nf6 0
11 d6 0
12 e6 0
13 Nh6 0
14 d5 0