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

Book: ∞ / 0

# move proof disproof
1 Rd8 0
2 Ref8 0
3 e6 0
4 Rhf8 0
5 a5 0
6 Ra8 0
7 Rc8 0
8 a6 0
9 Rb8 0
10 e5 0
11 g4 0
12 Nf6 0
13 h4 0
14 Nf8 0
15 c6 0
16 c5 0
17 Rhg8 0
18 Reg8 0