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

Book: ∞ / 0

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