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

Book: ∞ / 0

# move proof disproof
1 Kf5 0
2 Nb6 0
3 Bb7 0
4 f5 0
5 c5 0
6 Kf7 0
7 Ke7 0
8 Ba6 0
9 Kd6 0
10 Nc5 0
11 Ne5 0
12 Rb8 0
13 Kd5 0
14 Ke5 0
15 Nf8 0
16 Nb8 0
17 a6 0
18 c6 0
19 a5 0