Play SUDOKU PRO online for free and sharpen your logic skills. Choose a difficulty, tap or click cells, and fill the grid using deduction and notes. The game is ideal for casual players and serious solvers.
Start a new puzzle in seconds, use hints when needed, and track your best times. SUDOKU PRO gives you hundreds of puzzles and clear tools to learn, practice, and improve.
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Desktop
- Click a cell with the mouse to select it.
- Press number keys 1 to 9 to fill the selected cell.
- Press Backspace or Delete to clear a cell.
- Use arrow keys to move the selection between cells.
- Click the Notes or Pencil button or press N if available to toggle note mode.
- Use Hint and Undo buttons with the mouse for help and corrections.
Mobile
- Tap a cell to select it.
- Tap a number button (1 to 9) to enter that number.
- Use the Notes or Pencil button to toggle note mode and add candidate numbers.
- Tap Erase or the clear icon to remove a number.
- Tap Hint for a suggested move and Undo to revert the last change.
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SUDOKU PRO is a classic 9x9 logic puzzle game designed for quick play and long term brain training. Your goal is to fill every row, column, and 3x3 box with the digits 1 to 9 without repeating a number in any row, column, or box. Each puzzle begins with some numbers fixed in place and you must use logic to determine the rest.
The game offers four difficulty levels from easy to expert to suit beginners and advanced players. Core gameplay features include pencil marks for candidate numbers, an error detection mode to flag wrong entries, an undo function, and a hint system that reveals safe moves when you are stuck. A built in timer lets you track your solving speed and improve over time. With over 3,000 puzzles and multiple visual themes, SUDOKU PRO delivers an accessible, focused puzzle experience for daily practice or a quick mental break.
Game Details
Category
Puzzle
Developer
Unknown
Technology
HTML5
Platform
Web Browser
Devices
Desktop, Tablet, Mobile
Game Features
3,000+ Puzzles
Large puzzle library with fresh boards to keep practice varied and engaging.
Four Difficulty Levels
Easy, Medium, Hard, and Expert modes let beginners learn and experts stay challenged.
Notes and Pencil Mode
Add candidate numbers to cells to track possibilities and solve complex patterns.
Hints and Error Detection
Use hints when stuck and enable error checking to catch mistakes before they cost time.
Themes and Clear Interface
Multiple visual themes and a clean grid layout make sessions comfortable on any device.
Timer and Progress Tracking
Built in timer helps you measure solve time and improve speed with practice.
Frequently Asked Questions
Select a cell and enter a number from 1 to 9 so that each row, column, and 3x3 box contains all digits 1 through 9 without repeats.
Yes. You can request a hint to reveal a safe move when you are stuck. Hints are designed to help without solving the whole puzzle.
Yes. Toggle Notes or Pencil mode to add small candidate numbers in a cell. This helps track possible values when solving harder puzzles.
Most online sessions save the current puzzle in your browser so you can return later. For full cloud save, check if the site offers an account or backup option.
Yes. The game includes Easy, Medium, Hard, and Expert levels so you can start simple and advance to more challenging puzzles.