Posts: 422 Location: Canada Joined: Fri May 13, 2011 2:43 am

Re: if you have time left

cecileb wrote:

Sometimes I feel as if I am out of my league with all the math and programming discussions. So if this question sounds silly, I apologize. I would like to try that 13x13 puzzle, but how do I find out whether the solution I arrive at is correct? I'm accustomed to the error-checking feature and final message "congratulations, you solved the puzzle" on Patrick's site. It's just too tedious to check things for myself. It would be easy to see that each row and column contained only one of each number 1 thru 13. But then the answer to some operation in one of the cages might be wrong, and escape my notice. (I have an unfortunate tendency to make careless errors.)

cecileb

If you don't trust yourself, you could always send Patrick your solution and he could verify it for you...

It's just too tedious to check things for myself. It would be easy to see that each row and column contained only one of each number 1 thru 13. But then the answer to some operation in one of the cages might be wrong, and escape my notice. (I have an unfortunate tendency to make careless errors.)

That would be neat. For future though because I don't want to have to solve this one again when I've already done it.

Well this one for sure won't be included, because I've already posted the solution. (that said, I suppose I also published the book puzzle solutions..) Patrick

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