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

Book: ∞ / 0

# move proof disproof
1 d6 0
2 d5 0
3 Ne7 0
4 h6 0
5 Nf6 0
6 e4 0
7 Ra8 0
8 Bb7 0
9 Rb7 0
10 g6 0
11 Nh6 0
12 h5 0
13 Rc7 0
14 a5 0