Sudoku

About Sudoku Unblocked

Sudoku unblocked is available to play for free online. Sudoku is the ultimate logic puzzle game that has captivated millions worldwide with its elegant simplicity and mental challenge. Fill a 9x9 grid divided into nine 3x3 boxes with numbers 1-9, ensuring each number appears only once in every row, column, and 3x3 box. What starts as a grid with some pre-filled numbers becomes an exercise in logical deduction, pattern recognition, and strategic thinking. This digital version offers multiple difficulty levels from beginner-friendly puzzles with ample clues to expert challenges that will test even seasoned players. Features include hint system for stuck moments, mistake checking to learn from errors, auto-save to resume puzzles anytime, and timer to track your solving speed. Perfect for sharpening your mind during breaks or enjoying extended brain-training sessions. No math required - just pure logic!

Game Screenshots

How to Play

• Select and fill: Click an empty cell, then click a number 1-9 to fill it. The goal is to complete the entire 9x9 grid.
• Follow the rules: Each number 1-9 must appear exactly once in every row, column, and 3x3 box. No duplicates allowed.
• Use logic: Analyze which numbers are missing from each row, column, and box. Eliminate possibilities until only one number fits each cell.
• Solving strategies: Start with easy wins - find cells with only one possible number. Use pencil marks for multiple possibilities. Cross-reference rows, columns, and boxes to narrow down options systematically.

Game Features

Game Tips & Strategies

• Start by scanning rows, columns, and boxes for numbers that can only go in one place
• Look for naked singles (cells with only one possible number) and fill those first
• Use pencil marks to note potential numbers in empty cells - crucial for complex puzzles
• Focus on rows, columns, or boxes with the most filled numbers for easier solving
• When stuck, look for hidden singles - numbers that can only go in one place within a box