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Mr Puzzle - We've got puzzles! Puzzles by Maker > Mr Puzzle Standard wood and nail puzzles Price: DIFFICULTY RATING 7 The puzzle is to remove the ring, without cutting the rope. Based on the science of topology - the study of forms and surfaces - this puzzle is called Wit's End in the New Book of Puzzles (J.Slocum & J.Botermans) and an easier version called Sword Puzzle was patented in USA by Robert Boomhower in 1968. Size 230mm x 45mm x 12mm |
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