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

Book: ∞ / 0

# move proof disproof
1 h6 0
2 a6 0
3 Ke6 0
4 Nh6 0
5 Nf6 0
6 Bh6 0
7 Na6 0
8 a5 0
9 Bb7 0
10 g5 0
11 Ba6 0
12 Bg7 0
13 Ke8 0
14 Kd8 0
15 Kc7 0
16 Kd6 0
17 Kc6 0
18 h5 0
19 e6 0
20 e5 0
21 Nc6 0