Message: 3
Date: Sat, 30 Jul 2005 01:20:19 +0100
From: Alex Tweedly <[EMAIL PROTECTED]>
Subject: ANN: Sudoku Assistant
To: How to use Revolution <[email protected]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
The other day I mentioned that I had done a simple "Sudoku Assistant" -
a simple stack which gives you some assistance in solving Sudoku
Puzzles. I had done it over the course of an evening or two while on
vacation, and had decided that I really didn't find Sudoku puzzles all
that fascinating, so it had been languishing since then.
But mentioning it here, and having a couple of people ask about it,
revived my interest, so I've spent 3 hours today tidying it up and
adding a couple of useful features (Undo/Redo/combination counts/...).
(I also spent 4 or 5 hours learning basics of RunRev in some areas I
hadn't used before - useful for me, but only contributed about 10
minutes of useful work towards this stack :-)
It's posted in RevOnline, under Games, or username alextweedly - called
SudokuAssistant
Enjoy, and as always I'd welcome any comments, suggestions, even
requests ...
--
Alex Tweedly http://www.tweedly.net
Alex,
Thanks for the puzzle. Lots of fun. Dell Crosswords has a full page
of these every month, though none as tough a your last. They
generally are deterministic all the way to the end. Your number four
requires assuming a solution at one point near the end and
discovering a contradiction if the guess was wrong--proof by
contradiction. (I must confess that the labels make it more difficult
for me--harder to see what is filled in and what isn't.)
I am interested in what algorithm is used under the "Auto" button.
If you also enjoy Cryptogram puzzles, I have one which retrieves 4
quotes from the web every day and encodes them for your decoding
pleasure. It is my daily diagnostic tool to reveal the onset of
senility. You can take a look at:
go stack url "http://home.infostations.net/jhurley/DailyCryptoquote.rev";
It's a 450k file. It contains a dictionary for a decoder utility.
Jim
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