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

Book: ∞ / 0

# move proof disproof
1 c6 0
2 Kc6 0
3 Kd8 0
4 a6 0
5 Nf5 0
6 a5 0
7 Ke8 0
8 Na6 0
9 f5 0
10 g5 0
11 Nc6 0
12 Ng4 0
13 Kc8 0
14 Kd6 0
15 Ke6 0
16 e6 0
17 f6 0
18 e5 0
19 Ng8 0