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Continue to ChatTwo Color-Patterns of a Tessellation Using Squares, Rhombi, Equilateral Hexagons, Tetraconcave Octagons, and Regular Octagons https://robertlovespi.net/2016/01/03/two-color-patterns-of-a-tessellation-using-squares-rhombi-equilateral-hexagons-and-regular-octagons/