??
How many squares of any size on this chessboard do not contain a rook?
Puzzle Copyright © Kevin Stone
workings hide hint answer print
Share link:
Hint
How many 2 x 2 squares are there?
Note: BrainBashers has a Dark Mode option. For BrainBashers, I'd recommend not using your browser's built-in dark mode, or any dark mode extensions (sometimes you can add an exception for a specific website).