Solver App for Android and iPhone
Strategies for Number Puzzles of all kinds
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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 .

Post a Comment or Question here...
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Any Sudoku you want to publish here for easy loading into the solver - 81 characters, use '.' or '0' for unknowns.

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

Monday 13-Jan-2014

... by: Amb, New Zealand

When you are typing in a sudoku into the solver, it's easy to type numbers in and have it jump to the next square. But if its a square you want to leave blank, you either hit the arrow key or the tab key. I'd like to suggest that you could also have the 0 key register the cell as "Blank" and move on. (Of course if the user has the Auto Tab option off, it will just blank back out as before)

The advantage of using 0, is then you can type in your puzzle with one hand on a number pad!

Andrew Stuart writes (13-Jan-2014):

Good call, not to difficult to add. Thanks for the suggestion. Refresh the solver a couple of times. Cheers

Monday 13-Jan-2014

... by: Howard, usa

There was a lot of interest in your web site when I mentioned it in a Windows 8 class. Please add your app to the Microsoft Store. There is truly interest.

Andrew Stuart writes (15-Jan-2014):

That's great to know, I'm glad the site is enjoyed. I'd certainly like to make an App for the Microsoft Store.
Glad to have your support

Monday 6-Jan-2014

... by: Andrew Stuart, Cambridge

Happy New Year solvers!

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