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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 Bh6 0
3 f5 0
4 Kd8 0
5 h5 0
6 d6 0
7 f6 0
8 h6 0
9 Na6 0
10 Nc6 0
11 e5 0
12 e6 0
13 Nh6 0
14 d5 0
15 Nf6 0
16 Bg7 0
17 b6 0
18 b5 0