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Copyright

My entire site, including all the puzzles, is protected by international copyright laws under the Berne convention ruling of 1971. There is no requirement on my part to do anything other than produce the puzzles on the website, copyright in all countries is automatically assigned to me upon publication.

I authorise you to view, upon an Internet HTML browser, the material on this website solely for your personal, non-commercial use. Electronic storage of the material is expressly forbidden. You may not sell or modify the material or reproduce, display, distribute, or otherwise use the material in any way for any public or commercial purpose without the written permission of me. If you are to violate any of these terms, your permission to use the material automatically terminates and you must immediately destroy any copies you have made of the material.

And since a lot seems to think Sudoku-puzzles aren't copyrighted, I suggest you read 10 Big Myths about copyright explained.