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

Book: ∞ / 0

# move proof disproof
1 f5 0
2 Rb8 0
3 g5 0
4 Bb7 0
5 Nc5 0
6 e5 0
7 Nb8 0
8 Nb6 0
9 e6 0
10 a5 0
11 Ne5 0
12 Ba6 0
13 a6 0
14 h5 0
15 Bg7 0
16 Rh7 0