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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. I'm also directing Str8ts feedback here. Please feel free to drop me a note on the side of the page. Or you can email me directly at andrew@str8ts.com.

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If you are writing to alert me of a problem (thank-you!) please include a url to the page in question.
Can get fixes in quicker if I know immediately where to go.

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

Saturday 11-Jan-2025

... by: Tim, USA

Hello, Could you please clarify what you recently added for UR3b? Nothing was labeled with a date.
Thanks,
Tim

Andrew Stuart writes:

Yes sure. the second example of UR3B where the text starts “Here is a triple with a slightly different pattern, also from David Hollenberg...”
And the second example of Type 5

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Thank-you everyone for all your questions and contributions.