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Feedback and Questions

I've received a lot of interesting comments and questions from Sudoku fans over the last few years and this page is where I try to answer them. Please feel free to drop me a note on the side of the page or try the Facebook comment box. Or you can email me directly at .


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Many thanks to all the people who have helped improve the solvers and strategies with their feedback!

Sunday 23-Jul-2006

... by: Terry Stewart, Rochester, Minnesota, USA

Load Sudoku:

I reentered the puzzle and ran it again with the current version and got a different result. I guess it is possible that I did not enter the puzzle correctly the first time, but I don't think that is true.
Terry Stewart

Andrew Stuart writes (23-Jul-2006):

See below

Sunday 23-Jul-2006

... by: Terry Stewart, Rochester, Minnesota, USA

Load Sudoku:

This puzzle can be solved with your older version (circa 2006-06-06), but gets stuck with the current version (online) at the point where the old version finds a Y-Wing. When I say "gets stuck" I mean that pressing the "take step" button seems to have no effect and gives no message.

I really appreciate the work you put into the Sudoku Solver,
Terry Stewart
Rochester, MN USA

Andrew Stuart writes (23-Jul-2006):

I was doing some back end work this morning which may have interrupted the solver app. I've just run this and it solves completely with just simple colouring as the hardest strategy. Seems fine right now.

Saturday 22-Jul-2006

... by: Joanne W, Wales, UK

Wonderful step-through solver, very much appreciated. helped me learn a great deal.

Saturday 22-Jul-2006

... by: BoB, USA

Load Sudoku:

The previous version of the web solver notified the user when all strategies were exhausted with a pop-up message. The message would tell the user they must take a guess. The new version now simply rolls over and tries all the strategies again. Don't know if you consider this a bug. The following puzzle is an example.

[Edited - see link above]

Also, I love your solver. I think it's the best because of it's "step" design versus solving the whole puzzle in one step. The teaching tutorials are some of the best I've seen.

Regards,

Bob

Andrew Stuart writes (22-Jul-2006):

A bug, well spotted, it wasn't actually doing the last strat. I've fixed it I think, have a go now.
Thanks for the alert!
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