This week’s Fiddler is a challenging counting problem. Consider the following array of 25 squares: You are filling the array with rectangles by repeating the following two steps: Select one of the 12 squares along the outer perimeter that has not yet been selected as part of a rectangle. Form the largest rectangle you can … Continue reading "Tiling a Tilted Square" The post Tiling a Tilted Square first appeared on Book Proofs.