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

Book: ∞ / 0

# move proof disproof
1 Nh6 0
2 Nf6 0
3 h6 0
4 e4 0
5 Bb7 0
6 d6 0
7 d5 0
8 Ne7 0
9 g6 0
10 a6 0
11 h5 0
12 g5 0
13 Rb8 0
14 a5 0
15 Ba6 0