Grand constructions with Octiamond Ring


In 2017, John Greening, one of the world's outstanding puzzle aficionados, custom-ordered our Iamond Ring and Octiamond Ring in special colors and sizes 6, 7, and 8. At the end of July he amazed us with this complex nested-rings solution that he calls the "Grand Iamond Ring", after many arduous efforts at solving. He writes, "What a thrill when the last piece fitted into place!!" Yes, John, we know that thrill, too.

Here's John Greening, holding the workboard before completing the solution above. Congratulations, John, on these heroic achievements.

In 2018 John outdid himself by commissioning us to make him a full set of the 161 enneiamonds: all the shapes of 9 equilateral triangles joined. "This way lies madness," we thought, until John sent us a solution he had found, the fantastic and dramatic figure below. Notice how he managed to get the one piece with a hole to sit right in the center.

We wondered what spectacular idea John would come up with next, and here it is.

In May 2020, John Greening produced the ultimate (so far) assembly of the hexiamonds through dekiamonds forming concentric rings around a center star, after months of determined hands-on work. No easy computer solutions for this passionate solver. We show his magnificent design, and below it a couple of solution boards for a clearer view of the arrangements. Notice the symmetrical positions of triangles that are the pieces with enclosed holes.


Some years before, Jacques Ferroul in France sent us these beautiful variants of the Octiamond Ring surrounding a core of hexiamonds:



Michael Dowle, a British scientist and puzzle enthusiast, sent us this amazing Christmas wreath in December 2020 and kindly included a solution sketch.

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