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In November we challenged you to find a way to tie
the three loops of string together so that untying any one of them
causes the other two to be disconnected.
Can you tie three loops of string together in such a way that
they are all connected, so that if you pick up one loop, the
others will come with it? Here's one way. |
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If you now untie the blue string, the green and red loops are
no longer connected. |
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But, if you untie
the red string instead of the blue one, the other two loops remain
attached. |
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Similarly, if
you untie the green string, the red and blue loops remain connected
to each other. |
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Can you find a way to tie the three loops together so that untying any
one of them causes the other two to be disconnected?
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