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

Book: ∞ / 0

# move proof disproof
1 c3 0
2 e6 0
3 e5 0
4 a6 0
5 Nc6 0
6 Na6 0
7 Bb7 0
8 a5 0
9 Ba6 0
10 Ke6 0
11 Kc6 0
12 Ke8 0
13 Kd8 0
14 Kc7 0
15 Kd6 0