Copy produced by puzzle design Ton Delsing. 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
Turn and press so that all half circles above and below have the same color. Inside you can set 5 different difficulties. Instructions included.Turn the center with a coin to open. Without box
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