Sudoku: Classic Puzzle

Pocket Sudoku — the classic number puzzle, clean and free. Relax with the timeless game of logic. Pocket Sudoku gives you an endless supply of hand-crafted puzzles across six difficulty levels, a fresh Daily Challenge every day, and a distraction-free board that feels great on any phone. 🧩 SIX DIFFICULTIES From a gentle Beginner grid to fiendish Extreme puzzles. Every board has exactly one unique solution, so it's always solvable with logic alone — no guessing. 📅 DAILY CHALLENGE A brand-new puzzle every day, the same for everyone. Build a daily streak and keep it alive with an optional reminder. Leave mid-puzzle and your progress is waiting when you come back. 🎨 BOARD THEMES Play, and the board changes with the seasons. Spring, Summer, Autumn and Winter are earned rather than bought — collect a monthly badge and the next one opens. Each has its own grid colors, its own backdrop and its own quiet decoration, and you switch between them from the palette right on the board. Any theme can be set light or dark, or left to follow your phone. 🗓️ MONTHLY EVENTS A new goal every month, set at your level — the game watches what you actually win and moves you up once you've earned it. Meet the goal and that month's badge is yours to keep. Twelve a year, and the collection is what opens the seasonal boards. 🎃 SEASONAL PACKS Optional packs for anyone who wants more. Everyday brings Aurora, Sunset and Neon. The Halloween and Midwinter packs come around for two weeks a year, three boards each, and they are properly dressed: cobwebs strung on the grid, a carved lantern, garlands and gifts, falling snow, neon that flickers. Buy once and keep it, in season or out. 🚩 CHECKPOINTS Stuck on a cell that could go two ways? Mark the board before a risky guess, then jump straight back to it if the guess doesn't work out — no restarting, no undoing move by move. 📲 SHARE A PUZZLE Send anyone the exact same grid with a QR code or a link. It opens straight in the app, and a friend who doesn't have it yet finds the puzzle waiting after installing. Race on identical boards, or save a puzzle you loved and play it again later. 🏆 42 ACHIEVEMENTS Milestones, mastery, speed, and streak achievements to chase — with progress bars so you always know how close you are to the next one. 🎮 GOOGLE PLAY GAMES Sign in if you like; it's never required. Climb the leaderboards with your best times without hints on every difficulty, your total wins and your longest daily streak, and follow your achievements in Play Games. Your statistics are saved to your Google account, so a new phone carries on where the old one left off, and wins on all your phones count together. 📊 STATISTICS Track your total wins, best and average times per difficulty, and your longest daily streak. ✨ A SMART, CLEAN BOARD • Pencil notes for candidates • Highlights for matching numbers and related cells • Undo your moves • Hints when you're stuck • Three number sizes, for tired eyes • Auto-save — leave any time and pick up right where you left off 🌍 PLAY YOUR WAY • Fully offline — no internet needed • Available in English, Čeština, Deutsch, Español, Français, Italiano, Português, 日本語, 한국어, Bahasa Indonesia, Polski, Türkçe and العربية • Free to play. One optional purchase removes ads AND unlocks unlimited hints — yours forever, no subscription • Theme packs are separate one-off purchases. Nothing you earn by playing is ever behind them Whether you have two minutes or two hours, Pocket Sudoku is the perfect pocket-sized brain workout. Download and start solving!