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

Book: ∞ / 0

# move proof disproof
1 d6 0
2 f5 0
3 Nc6 0
4 Bh6 0
5 d5 0
6 h4 0
7 Kd8 0
8 f6 0
9 e6 0
10 Na6 0
11 e5 0
12 a6 0
13 Bg7 0
14 b6 0
15 b5 0