Play Sudoku Online Free

Fill the 9x9 grid so every row, column, and box contains digits 1-9. The ultimate number puzzle.

Click to interact Sound recommended

Sudoku

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How to Play

Place numbers 1-9 in each row, column, and 3x3 box of the 9x9 grid.

Each number can only appear once in every row, column, and 3x3 box.

Add pencil marks to track possible numbers for each empty cell.

Fill in every cell correctly to solve the puzzle.

Choose from easy to expert difficulty levels to match your skill.

Use notes to track candidate numbers for tricky cells.

Optional hints highlight mistakes so you can learn as you play.

Look for rows, columns, or boxes where only one number is missing or where a number can only go in one place. These are the easiest cells to fill.

For each empty cell, eliminate numbers that already appear in the same row, column, and box. This narrows down the possibilities quickly.

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Optimized hosting with global CDN ensures the game loads quickly no matter where you are. Start playing in seconds.

Play on any device - phone, tablet, or desktop. Our responsive design adapts to your screen for the best experience.

Access the game from school, work, or anywhere. No downloads or installations required - just click and play.

No malware, no suspicious downloads. Play directly in your browser with complete peace of mind.

We keep the game version up-to-date so you always have access to the latest features and bug fixes.