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

Book: ∞ / 0

# move proof disproof
1 d5 0
2 Ba6 0
3 g5 0
4 Bb7 0
5 d6 0
6 Nc2 0
7 Rb8 0
8 Nf6 0
9 e5 0
10 Nb3 0
11 h5 0
12 a6 0
13 e6 0
14 g6 0
15 Rh7 0
16 a5 0