Edit: This is formatted to be viewed on a larger screen. They may look like rectangles on a small screen but that's not the intent.
There are actually 40 squares present. If you can't locate them all and would like to see the solution, here is the link http://i1317.photobucket.com/albums/t621/03bluecoupe/squares_solution_zpsa2499794.gif
There are actually 40 squares present. If you can't locate them all and would like to see the solution, here is the link http://i1317.photobucket.com/albums/t621/03bluecoupe/squares_solution_zpsa2499794.gif