This puzzle is a copy produced by puzzle design Ton Delsing.Slide the numbers into order. Start: remove orange center piece .Green pieces are immovable. Material MDF.The letters are covered with transparent foil. You can slide without damage.
12 pieces with inlaid letters. Pieces with tongue and groove. All pieces 20x20 mmSlide from the starting position ALBWHITE CK!!ET TO !WHITE !BLACK! On the back there is a slide up and down. This slide changes the free hole.Then slide to BLACK! WHITE! easy?Material Acrylic.
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