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

Book: ∞ / 0

# move proof disproof
1 h5 0
2 Bg7 0
3 e5 0
4 Nc6 0
5 Na6 0
6 Kd6 0
7 Ke8 0
8 Kd8 0
9 a5 0
10 Nf6 0
11 Kc6 0
12 a6 0
13 Ke6 0
14 Ba6 0
15 c6 0
16 Bb7 0
17 e6 0
18 c5 0