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Mindbender: Join them up

by Kit
Published: Last Updated on 25 views

Using only three straight lines connect these nine dots, without lifting pen from paper or crossing over another line.

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ANSWER
Alternative

The answer to Mindbender 39 seems a bit contrived, albeit interesting. I would submit that another 'solution' that is no more contrived is: Place the nine dots on a deflated spherical balloon with the center line of dots in line with the opening of the balloon. When the balloon is inflated, each of three rows of three dots will be on a great circle. It is then easy to select three segments of the great circles to solve the problem."

Sent in by George Crofts

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