Type in your Contribution

If you are an existing user please give your login details, which you specified when you first registered, these details were also sent in a confirmation e-mail. When you have entered the details press Submit.

Notes

If you want to write a long article, it is best to do this offline in a word processor and then paste the text into the form. Using this method lets you edit the text more easily and spot spelling mistakes. Please do not use CAPITALS for your text as this would make it very difficult to read.

Please do not include references to web pages or email addresses unless you are certain that they are needed and unlikely to change. We do not permit any advertisements or other commercial promotions on the web site as contributions - please see the terms and conditions.

Only your name will appear on the web site, not your email address.

If you have a particular Sudoku puzzle to contribute (for help with or for use as an example) you can upload them by selecting the Contribute... option from the program's File menu.