On this page the first 100 (best known) solutions are displayed for the challenging squares puzzle. The exercise is:
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Only concrete sizes of squares are available, e.g. centimeters or inches, or use square paper.
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The puzzle surface is square of N by N (the larger, the more challenging)
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The puzzle pieces are all squares smaller than N, so 1x1 tot till (N-1) x (N-1)
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You can choose yourself which pieces to use, as long as they are all different.
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Of course pieces may never overlap
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Target is to cover as much surface as possible (covering all would be a perfect solution)
Trivial solution
