30 panels weave together to form a polyhedral solid (isomorphic to the edges of an icosahedron). Twenty identical pieces, five where the notch in the side is made as deep as possible and five where the end is narrowed slightly. The pieces are notched along each end to receive the edge of another piece. Several of the pieces must have the end of the notch removed to allow assembly. To assemble the puzzle, you must make two subassemblies. One has twenty pieces and the other ten. These are then coaxed together. Puzzle includes instructions and one spare panel.
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