Marble Sudoku reimagines the classic Sudoku game with colorful marbles instead of numbers. Enjoy a calming Color Sudoku experience on a wooden board with soothing sounds, gentle haptics and multiple game modes designed to help you relax your mind and train your brain. Inspired by Japanese aesthetics, Marble Sudoku combines logic, flow and visual harmony into a puzzle game.

Play Sudoku puzzles anytime, even without an internet connection — ideal for travel, commuting or winding down before bed. From quick, easy sessions to deep expert challenges, Marble Sudoku adapts to how much time and focus you want to invest. Whether you play for a few relaxing minutes or longer sessions, Marble Sudoku supports both relaxation and focused brain training.

Different modes

Classic
The timeless classic Sudoku experience with a 9×9 board and 3×3 regions, from Easy to Expert difficulty, designed for both beginners and experienced Sudoku players.

Countdown
Race against the clock. Every correct move adds time, allowing you to build longer combos while keeping your mind sharp and focused.

Boulder
Solve logic puzzles around stone obstacles to break them and clear the board, adding a strategic layer to the classic Sudoku flow.

Mosaic
Play Color Sudoku with irregular regions instead of standard 3×3 boxes. These jigsaw-like boards challenge pattern recognition and keep your brain engaged.

Duel coming soon
Compete in real time against another Sudoku player and see who solves the puzzle faster.

Train your brain, relax your mind

Sudoku and logic puzzle games help train memory, focus and problem-solving skills.
Marble Sudoku is designed as a calm, almost meditative brain game, ideal for unwinding after a long day and taking a break from constant digital noise.
Track your progress with detailed stats, keep a daily streak and see how your brain training improves over time as you solve more Color Sudoku boards.
Compete and improve your skills
See how you rank against Sudoku players from around the world. Monthly challenge leaderboards track your total score, and top players can earn a permanent spot in the in-game Hall of Fame. Competition stays optional and balanced, rewarding progress and consistency without pressure.

Smart tools and sudoku solver help

Use classic Sudoku helper tools whenever you need them.
Notes mode, hints and smart validation provide gentle guidance for tricky moments, helping you learn better strategies and gradually solve more challenging Color Sudoku boards on your own.

Make every puzzle yours
Customize how your Color Sudoku looks and plays. Choose from different marble styles, including a colorblind-friendly palette, show your country flag and set your username on the leaderboards. Turn on hints, notes and auto-erase for wrong moves — or disable assistance to enjoy a pure classic Sudoku challenge offline.

Designed for mobile
Enjoy smooth animations and subtle haptic feedback for comfortable, intuitive play. Shake to undo your last move, tap to place marbles quickly and switch seamlessly between short sessions and longer plays without clumsy controls.

Features

• Classic Color Sudoku puzzle with a unique marble board and glossy pieces
• Four game modes: Classic, Countdown, Boulder and Mosaic, with Duel mode coming soon
• Four difficulty levels from Easy to Expert, suitable for beginners and experienced players alike
• Play fully offline — enjoy Sudoku anytime without an internet connection
• Monthly global leaderboards and an in-game Hall of Fame
• Achievements and detailed stats to track your progress and brain training
• Notes mode, hints and smart help for gentle Sudoku solving support
• Shake to undo your last move
• Multiple marble styles, including a colorblind-friendly option, plus country flags for personalization
• Supports thirteen languages