Cerebral Rings - Brain Teaser Puzzle Review
Fabled to have been found among the effects of the renowned astronomer Johannes Kepler, was an early version of the Cerebral Rings.This challlenging puzzle baffles astronomers, astrologers and mathematicians alike.It was said that Kepler's students had to master the expanding layers of the Cerebral Rings and the red plungers within, solving the puzzle in order to progress to apprenticeship.Hundreds of possible combinations and only 8 solutions.Made in the USA. Read more...
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