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

Book: ∞ / 0

# move proof disproof
1 h6 0
2 h5 0
3 f5 0
4 Bh6 0
5 Nf6 0
6 Bg7 0
7 Nc6 0
8 e6 0
9 Na6 0
10 e5 0
11 a6 0
12 f6 0
13 d5 0
14 d6 0
15 Ba6 0
16 a5 0
17 Bb7 0
18 Kd8 0
19 Nh6 0