Thread: 4 4s puzzle
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Old 2007-09-23, 07:31   #5
Just call me Henry
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Sep 2007
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Originally Posted by petrw1 View Post
I started this same puzzle a year ago at:

Also in 2005 by someone else at

And a related 4-9's puzzle at:

There are several links in these posts to other web sites that solve problems with 4 of just about anything and just about any set of rules you like.
thanks this is very helpful
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