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

Book: ∞ / 0

# move proof disproof
1 d5 0
2 Bh6 0
3 Kf7 0
4 Nc6 0
5 Na6 0
6 b6 0
7 Kd8 0
8 e5 0
9 e6 0
10 Nf6 0
11 Nh6 0
12 a5 0
13 d6 0
14 a6 0
15 Bg7 0