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

Book: ∞ / 0

# move proof disproof
1 f5 0
2 d5 0
3 c5 0
4 a5 0
5 Bg7 0
6 Kd8 0
7 Kf7 0
8 Bb7 0
9 e5 0
10 e6 0
11 Bh6 0
12 d6 0
13 Nh6 0