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 a5 0
4 Ke8 0
5 Ke6 0
6 Ke7 0
7 c5 0
8 c6 0
9 Kd6 0
10 Kc6 0
11 Kd8 0
12 a6 0
13 Bb7 0
14 Ba6 0