Sudoku Game
Challenge your mind with the world's most popular number puzzle game - completely free and accessible on any device.
Play Sudoku Online
About Sudoku Game
Sudoku is a logic-based number puzzle that has captivated millions of players worldwide. Our online Sudoku game offers an authentic puzzle-solving experience with multiple difficulty levels, from beginner-friendly grids to expert challenges that will test even the most seasoned puzzle enthusiasts.
The game features a clean, intuitive interface optimized for both desktop and mobile devices. Whether you're looking for a quick mental break or an extended puzzle-solving session, our Sudoku game adapts to your preferences with helpful features like note-taking, error checking, and hint systems.
Perfect for players of all skill levels, this digital version maintains the classic appeal of traditional Sudoku while adding modern conveniences that enhance the puzzle-solving experience.
Sudoku Rules
Basic Rules
- 1 Fill the 9×9 grid with numbers 1 through 9
- 2 Each row must contain all numbers 1-9 without repetition
- 3 Each column must contain all numbers 1-9 without repetition
- 4 Each 3×3 box must contain all numbers 1-9 without repetition
Key Points
- ✓ Use logic and deduction, not guessing
- ✓ Start with cells that have fewer possibilities
- ✓ Look for patterns and elimination opportunities
- ✓ Every puzzle has exactly one solution
Sudoku Tips & Strategies
Start Simple
Begin with cells that have the fewest possible numbers. Look for rows, columns, or boxes that are nearly complete.
Use Notes
Write small numbers in cells to track possible values. This helps visualize patterns and elimination opportunities.
Scan Systematically
Regularly scan rows, columns, and 3×3 boxes for numbers that can only go in one place within that section.
Pro Tip
Practice the "elimination method" - instead of asking "what number goes here?", ask "what numbers CAN'T go here?" This approach often reveals the solution more quickly.