About sudoku games
Sudoku asks you to fill a 9×9 grid so every row, column and 3×3 box holds the digits 1 to 9 once. The browser versions here offer several difficulty levels, pencil notes and a hint when you are stuck, and most will check your answer as you go.
Start with the rows, columns and boxes that are nearly complete. When a digit can only fit one cell in a box, place it, and the rest of the grid opens up from there.
Our picks
- Sudoku Online: Sudoku Online is classic sudoku in your browser.
- CatDoku: CatDoku is a cosy logic puzzle in which you place cats on a coloured board.
- Sudoku Block Puzzle: Sudoku Block Puzzle combines sudoku with a wooden block puzzle.
- 2244 Number Match: 2244 Number Match is a number puzzle in the style of 2048.
Questions
What are the best free sudoku games?
Our picks right now: Sudoku Online, CatDoku, Sudoku Block Puzzle, 2244 Number Match. Each has a full review with tips on its page.
Are these sudoku games free to play?
Yes. All 81 games here are free to play in your browser, with no download and no account.
Do sudoku games work on my phone?
Most do. Open a game and press Play; turn your phone sideways for games that play in landscape.