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

Book: ∞ / 0

# move proof disproof
1 Kd7 0
2 f6 0
3 Nd7 0
4 Kd6 0
5 Bb7 0
6 Kf5 0
7 Bd7 0
8 a6 0
9 Ke5 0
10 a5 0
11 Na6 0
12 c5 0
13 Kf6 0
14 Ba6 0
15 Kd5 0
16 f5 0
17 Ke7 0