Solver App for Android
Strategies for Popular Number Puzzles
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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 .

Post a Comment or Question here...
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Many thanks to all the people who have helped improve the solvers and strategies with their feedback!

Tuesday 3-Jan-2023

... by: Kath, Canada

1 to 25 interface has been broken the past 2 days - it doesn't resolve into the usual format with all the puzzles on the left and the puzzle centred. The top of the page is cluttered with all the usual left side information and puzzle 1 does not open fully/isnt accessible.

Andrew Stuart writes:
Does [CRTL]+[F5] fix it?
Something is not telling the browser to reload new scripts

Tuesday 3-Jan-2023

... by: John, Texas

On an android tablet, can I get the full keyboard back in Str8ts?

Andrew Stuart writes:
Ok I'm going to put an option on the player
When I use Android with the default keyboard the numbers are not shown, you have to SHIFT to see them

Sunday 1-Jan-2023

... by: Angelika, Germany

When I go to archive of Str8ts and click on an older one, it changes to that one, but when I then click on printable version, what I see then is the Str8ts of the day

Andrew Stuart writes:
Excellent catch, thanks. I've just fixed it. Daily Str8ts version is now v2.13b, [CTRL]+[F5] if you don’t see that
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Thank-you everyone for all your questions and contributions.