Sudoku — Classic Puzzle Game

Classic Sudoku — clean, offline, and free of ads.

Sudoku is the timeless number puzzle: fill the 9×9 grid so every row, column, and 3×3 box contains the digits 1 to 9. Simple rules, endless logic.

WHAT'S INSIDE
• Three difficulty levels — from easy to expert. Every sudoku puzzle is generated with a guaranteed unique solution.
• 20+ color themes — switch instantly right from the game screen. Light, dark, Solarized, Nord, Dracula, Mocha and many more.
• Notes, hints and undo. Long-press an empty cell for a quick draft-notes popup — mark candidates without leaving the board.
• Auto-save — step away anytime and continue exactly where you left off.
• Daily challenge — a fresh puzzle every day.
• Statistics per difficulty: best time, average time, win streaks and win rate. Compare your results with other players.
• Achievements to unlock as you play.
• Fully offline. No ads. No clutter.

Casual mode (unlimited hints or errors) is available in settings and is counted separately, so it never affects your main statistics.

Train your brain with a daily sudoku puzzle. Relax, focus, enjoy.