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

Book: ∞ / 0

# move proof disproof
1 a4 0
2 Ra7 0
3 Ra6 0
4 Ba6 0
5 h6 0
6 d6 0
7 Ne7 0
8 g4 0
9 f5 0
10 Bb7 0
11 h5 0
12 Nh6 0
13 d5 0
14 Rb8 0