curiosamathematica: A 75 × 112 rectangle can be cut up into 13 squares, which can be
curiosamathematica: A 75 × 112 rectangle can be cut up into 13 squares, which can be rearranged into the initial rectangle in two different ways. One way was found by Brooks, who was so pleased with this dissection that he made a jigsaw puzzle of it, each piece being a square. His mother then tackled the puzzle and eventually succeeded in putting the pieces together, but not in the way Brooks has found! -- source link
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