Sixty-four square playing area (10)
I believe the answer is:
chessboard
(Other definitions for chessboard that I've seen before include "It has sixty four squares" , "Bossed char (anag.)" , "Game surface" , "On which pieces move" .)
I believe the answer is:
chessboard
(Other definitions for chessboard that I've seen before include "It has sixty four squares" , "Bossed char (anag.)" , "Game surface" , "On which pieces move" .)