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

Book: ∞ / 0

# move proof disproof
1 a5 0
2 Rh8 0
3 Ba6 0
4 h5 0
5 e5 0
6 Nc5 0
7 Nb6 0
8 a6 0
9 Ne5 0
10 f5 0
11 Rb8 0
12 g6 0
13 g5 0
14 Bb7 0
15 e6 0
16 Nb8 0