Ternary Burr — Cubicdissection

Ternary Burr

Cubicdissection · Cubicdissection · Secret Boxes
Who it's for: for keepers of secrets and lovers of hidden mechanisms.
How hard: Not yet Wickscored — our normalized difficulty rating lands once this object is enriched.
Where in stock: Sold out at Cubicdissection (last seen Jun 11, 2026) — the Wick Watch flags it the moment the wick relights.
$274.00 Visit Cubicdissection wick out — watched

In the maker's words

RELEASED: 9.20.2013 PRODUCED: 38 Copies DESIGNER: Goh Pit Khiam CRAFTSMAN: Eric Fuller MATERIAL: Cherry, Walnut COMMENTS: This puzzle is a groundbreaking and highly anticipated design. Only 30 copies have ever been made in the past, and Brian at Mr. Puzzle sold them out very quickly. The Ternary burr consists of 22 pieces, with over 90 notches and and grooves. The unique solution requires 75 moves to get the first piece out, and over 90 moves to completely disassemble the puzzle. A very difficult work of art! Here is what the designer, Goh Pit Khiam, has to say about it: "One evening, I was playing with Bill Cutler's Binary Burr and wondered whether the ternary idea in Markus Götz’s Crazy Elephant Dance puzzle could be adapted for a burr. After designing several prototypes, Ternary Burr was born. In my first prototype design, the ring pieces cannot be disassembled from the cage. Only the key piece can be removed. However, the number of moves to remove the key piece is 75 for a simple 4-ring version of the puzzle. Subsequently, Eric Fuller suggested that the cage should also come apart just like the Binary Burr. The final design allows the cage to be disassembled once the "ring" pie

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