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!