Sudoku: Math Puzzle

Free classic Sudoku puzzles — daily challenge, hints, offline brain training.

Looking for a free Sudoku game that feels sharp, fair, and addictive? Sudoku by SupStudio brings classic number puzzles to your phone — perfect for beginners, casual players, and advanced solvers who want a real brain workout.

Play Sudoku anywhere. Relax with an easy board on your commute, sharpen your logic on a hard puzzle at night, or start every morning with our Daily Sudoku Challenge. Thousands of moments to focus, unwind, and keep your mind active — even offline.

WHY PLAY THIS SUDOKU APP? Sudoku is the world’s favorite logic number game: fill a 9×9 grid so every row, column, and 3×3 box contains the digits 1–9 exactly once. Simple rules. Deep strategy. Endless “just one more puzzle” fun.

Our classic Sudoku puzzles are carefully graded across five difficulty levels — Easy, Medium, Hard, Expert, and Master — so you always have the right challenge. Progress within each level as you win, and grow from first fills to confident solving.

1,200+ FREE CLASSIC SUDOKU PUZZLES • Fresh boards for everyday play • One clear solution per puzzle • Fair difficulty that ramps as you improve • Great for adults, teens, and anyone who loves brain games

DAILY SUDOKU CHALLENGE Make Sudoku part of your routine. Each day unlocks one shared daily puzzle. Finish it to build your daily streak, earn rewards, and stay consistent. Cleared today? Practice again whenever you want — your streak already counts.

SMART HELP WHEN YOU’RE STUCK Never rage-quit a tough grid again: • Guidance hints that point you in the right direction • Pencil notes / candidates like paper Sudoku • Auto-check errors as you play • Highlight peers and matching numbers • Unlimited undo and erase • Optional mistake limit and timer • Number-first input for faster play

TRACK PROGRESS. COMPETE. CUSTOMIZE. • Detailed statistics by mode and difficulty • Best times, win rates, and streaks • Continue unfinished games with auto-save • Beautiful color themes for light and dark comfort • Coins for extra hints and reveals • Leaderboards and cloud progress sync • In-app How to Play guide to level up at your pace

PERFECT FOR: • Daily brain training and mental fitness • Relaxation and mindful focus breaks • Logic lovers who want classic Sudoku — not gimmicks • Offline play on flights, metros, and quiet evenings • Anyone searching for free Sudoku, number puzzles, or daily challenge games

Download Sudoku by SupStudio free and start solving now. One puzzle can wake up your mind. A daily streak can change your routine. Challenge yourself — and enjoy every digit.

Built with care by SupStudio.