64 squares on a checkerboard.
64 Squares on a chess Board
years in a 'score'
P in the S S = Planets in the Solar System.
It might be 'Separated by the Ages.'
21 shillings in a Guinea
3 Sides to a Triangle
640 Acres in a Square Mile
50 score for a Bulleye (in darts)
"Two Sides to Every Story".
Gun Salute
"syrup"