The Daily SuDoku (dailysudoku.com)
A dated classic sudoku every day, graded by difficulty, with a long archive and printable pages.
Every day: One dated 9x9 sudoku a day, the same for everyone and graded from easy to very hard, with an archive going back years. New puzzle: Once a day.

The Daily SuDoku is a long-running sudoku site that publishes one dated 9x9 puzzle every day, marked with its difficulty. You can print the grid or use the site's draw-and-play page, and an archive keeps earlier puzzles. The site also has sister puzzles and a sudoku book.
About The Daily SuDoku (dailysudoku.com)
The Daily SuDoku at dailysudoku.com is one of the older sudoku sites on the web, run by The Daily Sudoku Ltd, whose copyright notice goes back to 2005.
Each day's puzzle is a classic 9x9 grid labelled with the weekday and date and a difficulty grade, from easy up to very hard; the grade changes from day to day. The rules are the usual ones: fill every row, column and 3x3 box with the numbers 1 to 9, with no repeats. The FAQ explains the rules, why a puzzle never needs guessing, and how puzzles are graded.
The page offers a printable version and a Draw/Play page for solving on screen, and the archive lets you go back to any earlier date. A related book collects 101 puzzles with an introduction. The site carries ads.
It suits traditional sudoku players who like a plain, printable daily grid and a big back catalogue.
How to play The Daily SuDoku (dailysudoku.com)
- Open today's puzzle on The Daily SuDoku.
- Print it, or use the Draw/Play page to solve on screen.
- Fill each empty cell with a number from 1 to 9.
- Make every row, column and 3x3 box contain each number once.
- Check the difficulty grade and try earlier dates from the archive.
Tips
- On very hard days, write candidates in every cell before looking for pairs.
- Scan each number across the boxes before moving to harder techniques.
- The FAQ explains why puzzles can be solved without guessing.
Questions
Is there a new puzzle every day?
Yes, one dated puzzle a day.
How hard is it?
Each day's puzzle carries a grade, from easy to very hard.
Can I play older puzzles?
Yes, from the archive.
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