Printable sudoku – rules and difficulty levels
Sudoku is a 9×9 grid divided into nine 3×3 boxes. Fill it with the digits 1 to 9 so that every row, column and box contains each digit exactly once. Every grid here has exactly one solution.
- Choose a puzzle
Sudoku or word search.
- Set the level
Difficulty, puzzles per page and number of pages. For a word search, type your own words or pick a theme.
- Download and print
Answers go on the last pages. “New puzzles” generates a fresh set.
Difficulty levels
- easy – about 38 given digits, simple eliminations are enough
- medium – about 30 digits, you need to find the only place for a digit
- hard – about 25 digits, more advanced techniques needed
- large grids (one per page) are easier to read
Frequently asked questions
Does every sudoku have one solution?
Yes, the generator checks this for every grid.
Where are the answers?
On the last pages of the file – 12 grids per page.
How do I print a large sudoku?
Choose 1 grid per page – it fills most of an A4 sheet.