sudoku

Free Online Sudoku Puzzle Game with 4 Difficulty Levels
sudoku screenshot
Welcome to Sudoku
The classic number puzzle game that challenges your logic and concentration!
Game Features
  • 4 Difficulty Levels - Easy (50 clues), Medium (40 clues), Hard (30 clues), Inhuman (20 clues)
  • 400 Unique Puzzles - 100 hand-crafted puzzles per difficulty level
  • Professional Puzzles - Hard and Inhuman levels use expert 17-clue puzzle patterns
  • Smart Hints System - Get help with pencil marks to guide your solving
  • Error Detection - Instantly spot mistakes with the clear errors feature
  • Time Tracking - Track your solving time and beat your personal best
  • 47 Languages Supported - Play in your preferred language
How to Play Sudoku
  • Fill the 9x9 grid with numbers 1-9
  • Each row must contain all digits 1-9 without repetition
  • Each column must contain all digits 1-9 without repetition
  • Each 3x3 box must contain all digits 1-9 without repetition
  • Use logic and deduction - no math required!
Why Play Sudoku
  • Improves concentration and focus
  • Enhances logical thinking and problem-solving skills
  • Provides relaxing mental exercise
  • Helps keep your brain sharp and active
Start with Easy mode to learn the basics, then progress to Inhuman for the ultimate brain challenge!