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

Book: ∞ / 0

# move proof disproof
1 Nf6 0
2 d5 0
3 Bf8 0
4 e6 0
5 b6 0
6 Na6 0
7 e5 0
8 g4 0
9 Bg7 0
10 a6 0
11 b4 0
12 Nc6 0
13 d6 0