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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 Kc8 0
3 Bf8 0
4 Nc6 0
5 g4 0
6 Na6 0
7 e5 0
8 e6 0
9 c5 0
10 Bg7 0
11 f6 0
12 c6 0
13 Ke6 0
14 Kd8 0
15 Ke8 0
16 Kd6 0
17 Kc6 0
18 f5 0