Originally Posted By: wofahulicodoc

There are five 1-by-1 squares, five 2-by-2 squares, and one 3-by-3 square.

Watch out not to miscount six 2-by-2s by tagging the same one (made of four 1-by-1s) twice, counting both across and down.

it may be a coincidence and not relevant at all but I note that your username ends in doc and this post shows the sort of attention to detail i would like to see from a medical doctor.