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

Book: ∞ / 0

# move proof disproof
1 a5 0
2 h6 0
3 f4 0
4 Kf7 0
5 Nc6 0
6 g5 0
7 d6 0
8 e6 0
9 d5 0
10 Bh6 0
11 Nh6 0
12 Bg7 0
13 a6 0
14 Kd8 0
15 Na6 0
16 Nf6 0
17 h5 0
18 e5 0