Doodle Sudoku

Doodle Brain Gain

Contains ads

About this game

Doodle Sudoku is a fresh, hand-drawn take on the world's favorite number puzzle — a daily Brain Gain workout designed to sharpen your focus, memory, and logic in just a few minutes a day.

Forget stiff, cold grids. Every puzzle in Doodle Sudoku is wrapped in a warm, sketch-style aesthetic with playful doodles, satisfying animations, and gentle sound effects that make solving feel calm and rewarding — never stressful.

■ FIVE DIFFICULTY LEVELS Whether you're just learning the rules or hunting your next personal record, Doodle Sudoku has a puzzle for you: • Easy — perfect for a quick warm-up • Medium — a comfortable daily challenge • Hard — where real logic begins • Expert — for confident solvers • Master — only the toughest need apply

Every puzzle is generated with a guaranteed unique solution, so you can always solve it with pure logic — no guessing required.

■ DAILY GLOBAL CHALLENGE One puzzle. Every player, every day, everywhere in the world. Compete on the Global and Country leaderboards, chase percentile rankings ("You beat 87% of players today!"), and build unbeatable streaks. Miss a day and a friendly nudge will help you bounce back.

■ BRAIN GAIN PROGRESSION Doodle Sudoku is more than a puzzle app — it's a long-term mental fitness routine: • Earn XP for every puzzle you complete • Level up your player profile • Unlock achievements and collectible badges • Track win rate, best times, and average solve speed • Grow a daily streak with weekly bonus rewards

■ CLASSIC TOOLS, PERFECTED Everything you expect from a top Sudoku app, refined for a smoother, faster experience: • Pencil notes / candidate marks • Unlimited undo & redo • Smart hints when you get stuck • Auto-highlight of row, column, and box • Duplicate detection in red • Locked pre-filled cells you can't accidentally overwrite • Three-mistake safety net with an optional continue

■ PLAY OFFLINE, ANYTIME Doodle Sudoku works fully offline. On a plane, on the metro, in a waiting room — your puzzles, streaks, and progress are always there. Sign in optionally to sync your daily leaderboard results and back up your stats.

■ RELAXING, PREMIUM FEEL • Soft hand-drawn "paper" theme with light & dark modes • Difficulty-tinted color palettes (green, blue, orange, red, purple) • Playful, satisfying completion celebrations • Optional haptic feedback and calming sound effects • Clean, distraction-free layout — built mobile-first

■ FAIR MONETIZATION — NEVER PAY TO WIN We respect your time and your intelligence: • Ads only in menu screens or when you choose a rewarded bonus • Never in the middle of a puzzle • Skill and logic are always enough to solve every board

■ GO PREMIUM (OPTIONAL) Upgrade to Doodle Sudoku Premium to enjoy: • A completely ad-free experience • Unlimited mistake continues • Unlimited hints • Exclusive seasonal & cosmetic themes • A premium profile badge

■ WHY PLAYERS LOVE IT "Finally a Sudoku that doesn't feel like a spreadsheet." "The daily challenge is my morning coffee ritual." "The doodle style makes solving so relaxing."

■ THE SCIENCE OF BRAIN GAIN Regular logic puzzles like Sudoku are linked to stronger short-term memory, better focus, and healthier mental aging. Doodle Sudoku turns that into a beautiful daily habit you'll actually look forward to.

Download Doodle Sudoku today and start your Brain Gain streak. Your future self will thank you.

What’s new

Initial production release of Doodle Sudoku - Relaxing hand-drawn Sudoku with daily puzzles, 4 difficulty levels, and smart hints.