What is Sudoku and how do you play it?

Sudoku is a logic-based number puzzle game where you fill a 9x9 grid with numbers 1-9. The goal is to have each row, column, and 3x3 box contain all digits from 1 to 9 without repetition. Start with the given clue numbers and use logic to deduce the remaining numbers.

What are the different difficulty levels in Sudoku?

Our free Sudoku game offers four difficulty levels: Easy (35-40 starting clues, great for beginners), Medium (30-35 clues, requires some strategy), Hard (around 27 clues, needs advanced techniques), and Expert (around 22-26 clues, very challenging). Each level is carefully generated to ensure a unique solution.

Can I get hints if I'm stuck on a Sudoku puzzle?

Yes! Our free Sudoku tool includes a Hint feature that reveals the correct number for one cell when you're stuck. We also offer Show Conflicts mode to highlight duplicate numbers, Note Mode for candidate numbers, and an Undo feature. For learning purposes, you can also use the Solve feature to see the complete solution.

Does the Sudoku game track my progress and statistics?

Absolutely! Our Sudoku game automatically tracks comprehensive statistics including games played, completed, win rate, best times for each difficulty level, average completion time, total playing time, and current win streak. All statistics are saved locally and persist between sessions.

Is this Sudoku game really free to play?

Yes, this Sudoku game is completely free with no subscriptions, no freemium limitations, and no hidden costs. Play unlimited puzzles at all difficulty levels with full access to all features including hints, timer, statistics, and puzzle generation. No registration or downloads required!

Free Online Sudoku Game (No Signup) – FreeWWW

🎯 Sudoku Game

Challenge your logic with this classic number puzzle!

How to Play Sudoku

Fill the 9×9 grid so that each row, column, and 3×3 box contains the numbers 1-9 exactly once. Click a cell and use the number pad or your keyboard (1-9 to enter, arrows to move, N for notes, P to pause, Delete to clear, Ctrl+Z to undo). Toggle Note Mode for pencil candidates or tap "Fill Notes" to auto-fill them. Use hints when stuck, and your mistakes, time, and statistics are tracked automatically. Every puzzle is guaranteed to have exactly one solution.

🎮 Difficulty Level

⚙️ Options

Show Conflicts

Highlight Same Number

Auto-Remove Notes

Note Mode (N key)

⏱️ Timer

00:00

Mistakes

Hints

⏸️

Paused

Click to resume

📊 Progress

🛠️ Actions

📈 Statistics

Games Played

Completed

Win Rate

Best Time

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Avg Time