Logic puzzle

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Kirk Bevins
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Logic puzzle

Post by Kirk Bevins » Sun Apr 08, 2012 10:13 pm

Hi guys. Please can you help with Puzzle number 500 from the actuary magazine. Puzzle 502 is quite fun - I solved it in about 3 minutes but puzzle 500 is the prize puzzle and is quite tricky I think.

http://www.theactuary.com/puzzles-and-g ... pril-2012/

Click download puzzles.

Cheers
Kirk
Deadline 17th April.

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Kirk Bevins
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Re: Logic puzzle

Post by Kirk Bevins » Sun Apr 08, 2012 10:49 pm

I'm sure someone could write a program to solve this. The key is to have the sum of each row and column equalling 28 and containing 1-7 only once. There can't be too many permutations of this...then it just needs to be juggled so the right sums are there for the centre squares.

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Charlie Reams
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Re: Logic puzzle

Post by Charlie Reams » Mon Apr 09, 2012 6:06 pm

Will this be another one where Graeme Cole solves it and you get the prize?

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Graeme Cole
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Re: Logic puzzle

Post by Graeme Cole » Mon Apr 09, 2012 10:26 pm

Charlie Reams wrote:Will this be another one where Graeme Cole solves it and you get the prize?
:D

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Kirk Bevins
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Re: Logic puzzle

Post by Kirk Bevins » Tue Apr 10, 2012 5:17 pm

Charlie Reams wrote:Will this be another one where Graeme Cole solves it and you get the prize?
I haven't won to date but possibly lol. We're friendly folk here.

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Jon Corby
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Re: Logic puzzle

Post by Jon Corby » Mon Apr 16, 2012 1:16 pm

Kirk Bevins wrote:I'm sure someone could write a program to solve this. The key is to have the sum of each row and column equalling 28 and containing 1-7 only once. There can't be too many permutations of this...then it just needs to be juggled so the right sums are there for the centre squares.
Done, and just sent you the whole spreadsheet so you can pick which one of the 1,258 solutions you wish to use :D

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