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Woodwork 

Winter 2013-2014

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Fiendish Knot Puzzle

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Fiendish Knot Puzzle

By John Cauley

Here’s a puzzle that’s devilishly difficult to solve but quite easy to make. You only need some 3/4" hardwood dowel rods, a 3/4" Forstner bit, a tablesaw and a drill press. At the end of one day in the shop you’ll have a dozen of these inexpensive brainteasers to tantalize your friends.

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Assembling this puzzle is so confounding that we suggest you lightly number each piece to help you figure it out!


This story originally appeared in American Woodworker June 2001, issue #87.