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

Book: ∞ / 0

# move proof disproof
1 h5 0
2 f5 0
3 Na6 0
4 Bg7 0
5 e5 0
6 Bb7 0
7 Ke6 0
8 Kd6 0
9 a5 0
10 Kc7 0
11 Kd8 0
12 Ke8 0
13 c5 0
14 f6 0
15 a6 0
16 Nf6 0
17 Ba6 0
18 e6 0