QuadStar is a non-shape-shifting jumbling puzzle based on the snub disphenoid, elongated at the four five-way vertices.

• Inventor: David Pitcher
• Mechanism: Doctrinaire axis system with fractional angles (Prism)
• Patents: Unknown
• Producer: 3D printing service
• Year: 2012
• Original Price: $0.00 USD
• Current Price: No Data

The QuadStar puzzle is based on the geometry of the snub disphenoid. The four five-sided vertices of the snub dishenoid have been elongated to produce true five-way symmetry. These four vertices of the new shape have been made into the rotational axes of the puzzle. QuadStar is a jumbling, but non-shape-shifting puzzle, in a similar manner to the Fracture-10 and Fracture-6 puzzles. Each axis can turn in increments of 72 degrees, but sometimes axes become blocked if edge pieces are flipped in the wrong direction. Unlike Fracture-10 and Fracture-6, useful moves can still be made even if another axis is blocked.
It is the dual puzzle of Oskar van Deventer's PentaJumble.

Thank you to the following people for their assistance in helping collect the information on this page: David Pitcher.

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