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

Book: ∞ / 0

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