Old Puzzle. The following text is printed on the back of the box. With the 9 pieces a large square or other figuresis to be formed in such a way that the same colour shal not occur more then once in any row horizontal or vertical (in the square also diagonal) This must be done for each symbol. .Material . Cardboard pieces
Put the letters in the right order. Assignments on the back. Pieces cannot fall out due to transparent top plate.Material acrylic.The letters are engraves in the pieces.
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