Sudoku is simple to learn, tricky to master, difficult to resist! So it’s just as well that you’ll find a new puzzle here every day, available to play online for seven days from its date of release. If you’re new to Sudoku, visit the Puzzler Encyclopedia for instructions and an interactive tutorial.

For information on the interactive features of the puzzle and how it works, plus details on when to use the Reveal/Verify functions and how to store an incomplete puzzle, click Help in the puzzle window.