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

Book: ∞ / 0

# move proof disproof
1 c6 0
2 a6 0
3 a5 0
4 Ke8 0
5 Kc6 0
6 e6 0
7 Qg8 0
8 Kd6 0
9 e5 0
10 Ke6 0
11 Qf8 0
12 Qe8 0
13 Qh8 0
14 Bb7 0
15 Ba6 0
16 Nc6 0
17 Na6 0
18 c5 0