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4 replies to this topic

#1 PlaneTech

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Posted 05 March 2008 - 11:51 PM

This one came to my attention about 30 years ago. If my memory hasn't faltered (possible ;) ), it was in a Mensa test, possibly in some (maybe disreputable?) magazine.

On a sheet of paper, draw 9 dots in a 3x3 grid. Using a pencil connect (by crossing) all 9 dots with 4 straight lines, without lifting your pencil from the paper.


Attached File  9_dot_b.bmp   41.92KB   96 downloads

Spoiler for Hint


Spoiler for Solution

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#2 toddpeak

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Posted 06 March 2008 - 12:02 AM

Spoiler for My answer

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#3 PlaneTech

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Posted 06 March 2008 - 12:06 AM

Nice!
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#4 heatherlovesjade

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Posted 06 March 2008 - 02:28 AM

this one was done two days ago, just to .let you know. Attached File  1.bmp   107.73KB   59 downloads
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#5 rookie1ja

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Posted 06 March 2008 - 10:52 AM

already posted ... check the 9 dots puzzle

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