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The object is to use rope from the wood to release the long bar.
This puzzle was brought to IPP20 in Los Angeles in 2000 by Lambert Bright. The story goes that it was given to him by a local farmer from Lincoln, Nebraska who did not know it's origins but liked to bring it out and stump people.
Mr. Young has redesigned the original to make it TWO PUZZLES IN ONE. Once the long bar is off you can use it as a completely different puzzle, the well known 'Buttonhole Puzzle'.
With this puzzle we provide the solution to BOTH the Traffic Lights and the Buttonhole Puzzle.
Size 90mm x 40mm x 10mm. Length of bar is 200mm.
This puzzle covered by Australian Design Registration No. 153007 This puzzle featured in??CFF Magazine??July 2006 article "Secrets of a Simple Type of String Puzzle" by Lambert Bright.