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

Book: ∞ / 0

# move proof disproof
1 d5 0
2 f5 0
3 Kd8 0
4 h6 0
5 e6 0
6 Bb7 0
7 Bh6 0
8 d6 0
9 h5 0
10 e5 0
11 Ba6 0
12 f6 0
13 Nf6 0
14 Bg7 0
15 Nh6 0