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

Book: ∞ / 0

# move proof disproof
1 c6 0
2 Ke6 0
3 f5 0
4 f6 0
5 Na6 0
6 a5 0
7 Nc6 0
8 a6 0
9 Kd6 0
10 c5 0
11 Ba6 0
12 e4 0
13 Ke8 0
14 Kd8 0
15 Ke7 0
16 Kc6 0
17 Bb7 0