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

Book: ∞ / 0

# move proof disproof
1 f6 0
2 f5 0
3 h6 0
4 g5 0
5 g6 0
6 a5 0
7 Qc7 0
8 Nh6 0
9 a6 0
10 h5 0
11 e5 0
12 e6 0
13 Ba6 0
14 Na6 0
15 Nc6 0
16 d6 0
17 Bb7 0
18 Nf6 0
19 d5 0