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

Book: ∞ / 0

# move proof disproof
1 h5 0
2 h6 0
3 Nf6 0
4 d6 0
5 Bb7 0
6 Ra7 0
7 g6 0
8 g5 0
9 Ne7 0
10 Nh6 0
11 Rb8 0
12 d5 0