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

Book: ∞ / 0

# move proof disproof
1 Rb8 0
2 f3 0
3 g5 0
4 g6 0
5 Ra7 0
6 Ne7 0
7 Kg6 0
8 Nh6 0
9 Kf8 0
10 Ke8 0
11 Ke7 0
12 Kf6 0
13 Ke6 0
14 Nf6 0
15 d5 0
16 d6 0
17 h5 0
18 h6 0
19 Bb7 0