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

Book: ∞ / 0

# move proof disproof
1 f6 0
2 Nf6 0
3 Ng5 0
4 Nc6 0
5 c5 0
6 g5 0
7 Na6 0
8 d5 0
9 f5 0
10 g6 0
11 Rh8 0
12 c6 0
13 b6 0
14 b5 0
15 e5 0
16 d6 0
17 e6 0