Sudoku - Classic Puzzle

Sudoku brings the classic number puzzle to your pocket with a clean, focused design. Perfect for a quick break or a longer brain workout.

HOW TO PLAY
Fill the 9×9 grid so that every row, every column and every 3×3 box contains the numbers 1 to 9 exactly once. Every puzzle has exactly one solution: no guessing, just logic.

FEATURES
• 4 difficulty levels: Easy, Medium, Hard and Expert
• Unlimited puzzles: every game starts with a new puzzle that has a unique solution
• Difficulty is based on the solving techniques each puzzle needs
• Notes (pencil mode) with automatic note cleanup
• 3 hints per game
• Unlimited undo
• Mistake checking with an optional 3-mistake limit
• Highlighting for row, column, box and identical numbers
• Number pad that shows how many of each number are left
• Auto-save: leave any time and continue where you left off
• Detailed statistics for every difficulty: best time, average time, win streaks
• Light and dark theme
• 9 languages: English, German, French, Spanish, Italian, Japanese, Chinese and Turkish
• Works on phones and tablets, portrait and landscape
• No internet needed, play offline anywhere
• Optional: watch an ad for an extra hint or a second chance

ADS THAT DON'T GET IN YOUR WAY
The game is free and supported by ads. No full-screen ad ever interrupts a puzzle: they only appear occasionally after a game is finished. Watching an ad for an extra hint or a second chance is always your choice. No account needed; your progress stays on your device.

Ready to train your brain? Download now and solve your first puzzle!