Originally Posted by petthefabric

It's hard to describe in words when dealing with visual art!

OK here goes. In the lft upper corner horizontal square (and all the similar color squares) put the dotted narrow strip by the lime green narrow strip. The bottom left (and all the similar pink, pink print and yellow squares), put the pink narrow strip by the yellow narrow strip. The wide strip is a one side of the square, the 2 narrow strips are together on the other side of the square. Do the same with the vertical squares; the 2 narrow strips are next to each other and the wide strip is on one side of the square, not between the narrow strips.