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

Book: ∞ / 0

# move proof disproof
1 a4 0
2 Nf6 0
3 Bb7 0
4 d6 0
5 h5 0
6 Nh6 0
7 d5 0
8 Ba6 0
9 Ra6 0
10 Ra7 0
11 Rb8 0
12 g5 0
13 Ne7 0
14 h6 0
15 g6 0