Rare IPP 24 Bundle: Bill Darrah’s "Perpetual Motion" + Original "Confusion" Prototype by George Miller

For the discerning collector of mechanical puzzles and IPP history, this is a rare opportunity to own a complete evolution set. Offered here is the IPP 24 (Tokyo, 2004) exchange puzzle "Perpetual Motion," accompanied by its incredibly rare, original development prototype, titled "Confusion."

​The Design & Pedigree

• ​Designer: The late Bill Darrah, a giant in the puzzle community and contributor to the logic-puzzle masterpiece Chip’s Challenge.
• ​Maker: Handcrafted by the legendary George Miller (The Puzzle Palace), known for his masterful execution of complex mathematical designs.
• ​The Challenge: A sophisticated constrained-packing puzzle involving colors, numbers, and magic square sums. The user must arrange the pieces so that no number or color repeats in any row, column, or diagonal, while achieving a magic sum of 25.

​The Prototype: "Confusion"

​Before it was finalized for the Tokyo exchange as Perpetual Motion, this design existed as "Confusion."

• ​Provenance: This prototype serves as a physical record of the design process between Darrah and Miller.
• ​Condition Note: Please note that the "Confusion" prototype shows significant signs of age and material wear (as is common with early Miller prototypes). While it has some damage, it remains a vital piece of puzzle history and a "holy grail" for completionist collectors.

​The Production Piece: "Perpetual Motion"

• ​Origin: Official Exchange Puzzle from IPP 24 (Japan).
• ​Condition: [Insert Condition, e.g., Excellent/Near-Mint].
• ​Materials: High-quality laser-cut acrylic and wood base, typical of George Miller’s precision work.

​Why This Set?

​It is rare to find an IPP exchange puzzle paired with its developmental ancestor. This bundle tells the story of two masters collaborating to perfect a design for the world stage. Whether you are a fan of Bill Darrah’s logic or George Miller’s craftsmanship, this set is a cornerstone addition to any collection.

Buyer to pay shipping determined at close of auction.