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

Book: ∞ / 0

# move proof disproof
1 Ke6 0
2 f5 0
3 f6 0
4 Bb7 0
5 Kc6 0
6 Bg7 0
7 Kd6 0
8 e6 0
9 c5 0
10 Nc6 0
11 a5 0
12 Ke8 0
13 Ra7 0
14 h5 0
15 c6 0
16 Qe8 0