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       xkcd - A Webcomic - Omniknot (2738)
        
       Image:
 (PNG) omniknot.png
        
       The Gordian knot is an omniknot tied using every bend in the
       Ashley Book of Knots, and then for extra security the upper rope
       at every crossing is connected to the lower with a
       randomly-chosen hitch.
        
       Comics reproduced from www.xkcd.com under license.
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