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  1. CW: Puzzle included ... no spoilers please

    A friend has sent me an interesting meta-puzzle, but we need to start with the first one.

    Attached is a black and white figure divided into four regions. That challenge is to divide the white regions into 2, 3, 4, and 5 congruent pieces.

    More explicitly, one of the white regions will be subdivided into 2 congruent regions. Another into 3, and so on.

    Can you find a solution?

    The second phase will follow later, but I think this is interesting enough in its own right.

    Please put solutions and spoilers behind a CW.

    PS: Classical methods and constructions only. We're in Puzzle World, not Crypto World.

    #RecMaths #RecMath #Math #Maths #MathsPuzzle #MathPuzzle #Geometry #GeometryPuzzle