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

Book: ∞ / 0

# move proof disproof
1 h5 0
2 Kc7 0
3 Ke8 0
4 Kc6 0
5 Kd8 0
6 Kd6 0
7 h6 0
8 Ke6 0
9 Ba6 0
10 Na6 0
11 Nc6 0
12 f5 0
13 e6 0
14 Bb7 0
15 e5 0
16 Nh6 0