The Hanayama Cast Ring puzzle is a fun puzzle that originates from the 15th century.
Based on a ring style used for official engagements and marriages. It was rumored to be proof of adultery if it comes apart into pieces.
Taking this one ap...
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Fiendish!
I love this puzzle, so solid and apparently insoluble - very satisfying indeed. I have bought several to date, but keep sharing the joy of Hanayama!
