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Dave's Diamond II
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A hexagonal dipyramid proportioned such that two offset sets of axes intersect at 90 degrees.

Dave's Diamond was originally conceived in 2012 (see the separate entry), but it was not until 2019 that this new mechanism was invented that made the puzzle playable. It is a 2x2x2 core that can be rotated to match up with one of the two sets of axes in the outer puzzle. By scrambling one set of axes at a time, and switching back and forth between the axis sets, the puzzle can become fully scrambled. Though there are some trivial limitations to the 2x2x2 mechanism, the puzzle can achieve all but two dead-end states that a construction with a hypothetical ideal mechanism could achieve.
Image 3-5 show the puzzle after 1,2,3 truns of 180 each.
Edge length: 76 mm
Weight: 143 grams



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


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