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

Book: ∞ / 0

# move proof disproof
1 Nf8 0
2 Nb8 0
3 Nf6 0
4 f5 0
5 c5 0
6 a5 0
7 Kf8 0
8 f6 0
9 Ba6 0
10 Nc5 0
11 e5 0
12 c6 0
13 Rb8 0
14 a6 0
15 e6 0
16 Ne5 0
17 Nb6 0
18 Bb7 0