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

Book: ∞ / 0

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