Sudoku ∙ Classic Sudoku 2025

Train your brain with challenging and fun Sudoku puzzles. There are thousands of puzzles to discover. What are you waiting for? Play for free now!

This classic Sudoku is suitable for beginners to experts. There are thousands of addictive Sudoku puzzles waiting for you. New puzzle games are added all the time to help you train your brain, take a short break or take your mind off your stressful everyday life.

Main features:
• Intuitive and very simple interface
• Thousands of puzzles in many difficulty levels: Fast, Easy, Medium, Hard and Expert
• Keep fit with daily challenges
• Fill in notes to make difficult puzzles easier to master
• Automatic error correction to check notes
• Explanatory hints: Detailed explanation of the requested hint with step-by-step instructions
• Highlighting of numbers, for a faster search
• Extensive statistics to monitor personal progress
• Eye-friendly color design: Choose between black, sand, grey and white, and size of the numbers
• Score is saved and can be paused and resumed at any time
• Personalized gameplay: extensive settings for customization
• Display Zoom Support for larger controls
• Supports landscape and portrait format
• Offline playable without restrictions

Sudoku is an addictive and tricky puzzle game for every age. Let's go. Instantly boost your brain power now!