Just google image checkerboard.
That depends on how big the rectangles are.
There are 15 rectangles.
There are 2025 rectangles in a 9x9 grid.
After i found the first 63 multiples of 2, I added all the products together to find the answer to the checkerboard riddle. I came up with 18,446,744,073,709,552,031
36
There are 32 black spaces on a checkerboard.
The checkerboard has sixty-four squares, an 8 by 8 board
There are 25 squares on a 5 by 5 checkerboard.
64
== ==
32.
64
What is the history of the checkerboard
64
64
A checkerboard is an 8×8 board and the 64 squares are of alternating dark and light color, often red and black.