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At first glance, Sudoku, crosswords, and other puzzles might seem like simple pastimes—things people do to pass the time on a lazy afternoon. But for many, puzzles are more than just entertainment.

You can create a release to package software, along with release notes and links to binary files, for other people to use. Learn more about releases in our docs.

You can create a release to package software, along with release notes and links to binary files, for other people to use. Learn more about releases in our docs.

Play The Telegraph’s full range of puzzles, including Crosswords, Sudoku, PlusWord and Sorted, with thousands more brainteasers in our archive ...

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We give you the number of letters and a clue and you work out the word, easy! Or is it? Updated daily.

We give you the number of letters and a clue and you work out the word, easy! Or is it? Updated daily.

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The Daily Memphian now offers readers all four sudoku-puzzle difficulty levels every day. Keep scrolling for easy, medium, hard and killer sudokus. Need more to satisfy your sudoku craving?