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

Book: ∞ / 0

# move proof disproof
1 h5 0
2 d5 0
3 Kf6 0
4 Kf7 0
5 Kd8 0
6 Kf8 0
7 Kd6 0
8 a6 0
9 Nf6 0
10 g6 0
11 d6 0
12 h6 0
13 Nh6 0
14 Ke8 0
15 Rb8 0
16 g5 0
17 e5 0
18 Bb7 0
19 Ba6 0