Name: Dodek Duo Puzzle
Manufacturer: Dodek Puzzle Company
Where to buy: Dodek Duo Puzzle at Puzzle Master Inc.
Object: The goal of the Dodek Duo Puzzle is to match either colors or geometric shapes across each edge. Two rectangular shapes match to make a square, two semi-circular shapes match to make a circle and two triangular shapes match to make a diamond. The Color Challenge is solved by matching the colors. The Color Challenge is the easier game. The Shape Challenge -- a much harder puzzle -- is solved by matching the inset shapes.