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

Book: ∞ / 0

# move proof disproof
1 h6 0
2 Rg8 0
3 e4 0
4 e6 0
5 c6 0
6 Qb8 0
7 Kc6 0
8 Ke6 0
9 Kc8 0
10 Ke8 0
11 a6 0
12 g6 0
13 Rc8 0
14 Qc8 0
15 Kd6 0
16 g5 0
17 c5 0
18 h5 0
19 a5 0
20 Rb8 0
21 Qe8 0