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

Book: ∞ / 0

# move proof disproof
1 Nf6 0
2 Bf8 0
3 c5 0
4 Kd6 0
5 Ke6 0
6 Bg7 0
7 Nc6 0
8 Na6 0
9 g4 0
10 a5 0
11 Ke8 0
12 Kd8 0
13 Kc8 0
14 Ke7 0
15 Kc6 0
16 Ne7 0
17 c6 0
18 a6 0