If you have a comment about a specific Sudoku puzzle you can Contribute it to an online forum, other Sudoku puzzlers then can help you with it. If there is a problem with your account please go to our Account Management page.
We have forums about all sorts of Sudoku issues including the latest tips and tricks for puzzle solving and using Sudoku Dragon. Please go to the Sudoku Forum index and select the appropriate forum.
If you need help using Sudoku Dragon please first take a look at our common questions page, then our Online help reference section (also installed with the program just press the F1 key), and then our support page.
To look for Sudoku information on our web site, please use the search page.
If you have a comment or suggestion, please send us a message. Go to the Contact page to send it.
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