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

Book: ∞ / 0

# move proof disproof
1 Rb8 0
2 Re8 0
3 Nb6 0
4 c5 0
5 Rc8 0
6 a6 0
7 e5 0
8 c6 0
9 Rd8 0
10 e6 0
11 Ne5 0
12 Nb8 0
13 Ngf6 0
14 Bg7 0
15 Nc5 0
16 Ndf6 0
17 a5 0
18 Bh6 0
19 Nh6 0