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

Book: ∞ / 0

# move proof disproof
1 a5 0
2 Nb8 0
3 f5 0
4 Nb6 0
5 Ba6 0
6 Bb7 0
7 g5 0
8 e5 0
9 Rh7 0
10 Ne5 0
11 a6 0
12 g6 0
13 h5 0
14 Nc5 0
15 Rb8 0
16 e6 0