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The level 7
Brass Monkey Sixential Discovery (BMSD) is the last in the eponymous Brass Monkey Series
It looks like a standard interlocking Burr
similar to high-end electronic goods
Hyperboloid Burr Wood Puzzles The level 7The Hyperboloid Burr is a very fun six piece burr puzzle made from identical hyperboloid pieces, designed by Oskar van Deventer and Naoaki Takashima. The puzzle has two solutions. The six piece version is a put together that assembles and displays well, but if picked up by a single piece falls apart under its own weight. The seven piece solution is completed with a satisfying "click" and holds together well. Both assemblies are made possible by
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