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Uploaded a work by derivative from work by
Claudio Rocchini based on mathematical result not subject to copyright from https://en.wikipedia.org/File:Wang_tesselation.svg http://www.cr31.co.uk/stagecast/wang/puzzle.html with
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24 tiles consisting of all permutations of 3 colors for the edges of a square, arranged into a 6×4 rectangular area such that all edges match and only one color is used for the outside edge of the rectangle.
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derivative from work by
Claudio Rocchini based on mathematical result not subject to copyright
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Solution to MacMahon
Squares puzzle with largest single color area
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