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

Book: ∞ / 0

# move proof disproof
1 Nb8 0
2 f5 0
3 Ngf6 0
4 a6 0
5 Nb6 0
6 e5 0
7 Bb7 0
8 g6 0
9 a5 0
10 Ne5 0
11 Rb8 0
12 f6 0
13 Ndf6 0
14 g5 0
15 Nh6 0
16 e6 0
17 Ba6 0
18 Kd8 0