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

Book: ∞ / 0

# move proof disproof
1 f6 0
2 a5 0
3 c6 0
4 a6 0
5 Nf6 0
6 Na6 0
7 Nd7 0
8 g5 0
9 Nc6 0
10 h5 0
11 Rh7 0
12 Bg7 0
13 c5 0
14 e5 0
15 e6 0
16 f5 0