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Back to the Wall (Posted on 2010-04-28) Difficulty: 3 of 5


No! Not a firing squad nor the need for a continuous line to cross all line segments just once!

To each vertex labeled A to L apply a different value from 1 to 12. Let V, W, X, Y and Z be the sums of their respective surrounding vertices.

Provide at least one example where V=W=X=Y=Z, or offer a reason why this, like the continuous line, is impossible.

See The Solution Submitted by brianjn    
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  Subject Author Date
efficiencyed bottemiller2010-05-04 11:45:15
re(2): Impossibilitybrianjn2010-05-02 04:12:54
re: ImpossibilityCharlie2010-05-01 13:26:15
Impossibilitybrianjn2010-05-01 06:19:29
four-square solutionsed bottemiller2010-04-30 20:41:02
re: If rectangle sums only of counters...Charlie2010-04-30 03:21:39
Solutionre(4): Misinterpretation -- listing continuedCharlie2010-04-30 03:17:16
Solutionre(3): Misinterpretation -- listing continuedCharlie2010-04-30 03:16:09
Solutionre(2): Misinterpretation -- listing continuedCharlie2010-04-30 03:14:39
Solutionre: MisinterpretationCharlie2010-04-30 03:13:18
Misinterpretationbrianjn2010-04-30 01:15:38
If rectangle sums only of counters...ed bottemiller2010-04-29 16:40:14
Reasons and Searchesed bottemiller2010-04-28 19:37:08
vertices, etc.ted bottemiller2010-04-28 17:55:10
re(2): computer solution -- the programCharlie2010-04-28 13:53:06
Solutionre: computer solution -- the part that got cut offCharlie2010-04-28 13:51:48
Solutioncomputer solutionCharlie2010-04-28 13:49:45
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