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The grooves engraved
in the two rotating boards are called
"logarithmic spirals."
These two grooves always
cross at right angles,
and a square hole is formed at their intersection.
The goal of this puzzle is to
remove the helix ring that goes through that hole.
The inspiration of this puzzle is the morning glory.
The puzzle was designed to look like a bud
that comes into bloom with twining tendrils.
The original concept dates back to 1990,
but it has been enhanced with the
addition of several tricky features.
The theme of this puzzle is "Flower."
Very DEMANDING puzzle!!
We advertise our puzzles using the standard
PUZZLEMASTER rating system
(level 5-10 with 10 being the toughest).
The Hanayama rating system goes from 1-6 (6 being the toughest)..
Approx. size: 2-1/2" x 2-1/2"
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