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

Book: ∞ / 0

# move proof disproof
1 Nf8 0
2 c6 0
3 e6 0
4 Nf6 0
5 Ref8 0
6 Rhf8 0
7 a5 0
8 Rb8 0
9 c5 0
10 Ng5 0
11 g5 0
12 a6 0
13 Rhg8 0
14 Ra8 0
15 Reg8 0
16 Rc8 0
17 h4 0
18 Rd8 0