Puzzle

Try Yourself

How many squares, of any size, can you find on this chess board that do not contain a Rook?

 

Answer: There are 116 squares without a rook.

1 x 1 : 61 squares.

2 x 2 : 37 squares.
3 x 3 : 15 squares.
4 x 4 :   3 squares.