About Sudoku - Classic Brain Puzzle
Sudoku: Champions Challenge & Global Leaderboards! Join the ultimate Sudoku adventure with Sudoku by Volcano! Compete in the exclusive Champions Challenge and climb global leaderboards to prove you’re the world’s top...
Sudoku: Champions Challenge & Global Leaderboards!
Join the ultimate Sudoku adventure with Sudoku by Volcano! Compete in the exclusive Champions Challenge and climb global leaderboards to prove you’re the world’s top Sudoku master! This free puzzle game is perfect for relaxing, training your brain, and challenging your logic skills. Whether you’re a Sudoku beginner or an expert, our classic Sudoku offers endless fun for all.
Why Play Sudoku by Volcano?
Champions Challenge: Battle players worldwide in thrilling daily Sudoku competitions. Win rewards and earn bragging rights as a Sudoku champion!
Global Leaderboards: Track your rank against millions of players and aim for the top spot in our global Sudoku rankings.
8 Difficulty Levels: From easy Sudoku to extreme Sudoku, find your perfect challenge.
Sudoku Variations: Explore unique twists like Squiggly, X, and Color Sudoku puzzles.
Smart Hint System: Learn how to solve Sudoku with step-by-step guidance, animations, and colorful visuals—great for Sudoku kids and pros.
Custom Puzzles: Create your own Sudoku puzzles or import from paper.
Over 15,000 Free Puzzles: Endless Sudoku games to keep your mind sharp.
Game Features for a Fun Experience:
Auto-highlighted numbers for smarter hints.
Pencil marks and error-checking tools.
Unlimited undo/redo for stress-free play.
Dark Mode to protect your eyes at night.
Offline Sudoku: Play anywhere, no internet needed.
Share your Champions Challenge victories via Twitter or Facebook.
Auto-save to pause and resume without losing progress.
Fun visuals and numerals like Chinese numbers.
Go Ad-Free with Premium Access:
Enjoy Sudoku without ads and unlock exclusive features with Premium Access for a seamless puzzle-solving experience.
Train Your Brain & Compete Globally:
Dive into the Champions Challenge and global leaderboards for a mindsport thrill. With stunning designs and intuitive gameplay, Sudoku by Volcano is the ultimate logic puzzle game to boost your brainpower.
Download Now for FREE and start dominating the Champions Challenge today! Share your feedback to help us make the best Sudoku app even better.
Previous Versions
Here you can find the changelog of Sudoku - Classic Brain Puzzle since it was posted on our website on 2019-10-25 14:53:45.
The latest version is 3.1.2 and it was updated on 2026-06-11 14:07:38. See below the changes in each version.
Sudoku - Classic Brain Puzzle version 3.1.2
Updated At: 2026-04-27
Changes: Thank you for all your feedback, which will help us make a great game!
Introducing Puzzle Workshop — create and share your custom puzzles with the global community!
Enhanced User Interface for better clarity and navigation
Full Mouse and Keyboard Support for PC players
Performance and stability improvements
Sudoku - Classic Brain Puzzle version 3.0.3
Updated At: 2025-09-28
Changes: Thank you for all your feedback, which will help us make a great game!
Enable edge-to-edge display
Improve user interface
Performance and stability improvements
Sudoku - Classic Brain Puzzle version 3.0.4
Updated At: 2025-09-28
Changes: Thank you for all your feedback, which will help us make a great game!
Add localization for Ukraine and Israel. May the world be at peace.
Performance and stability improvements
Sudoku - Classic Brain Puzzle version 3.0.2
Updated At: 2025-04-21
Changes: Thank you for all your feedback, which will help us make a great game!
Refine dark mode colors
Improve user interface
Performance and stability improvements
Sudoku - Classic Brain Puzzle version 2.9
Updated At: 2024-01-28
Changes: Thank you for all your feedback, which will help us make a great game!
Create/finish custom Sudoku puzzles now will earn points
Refine dark mode colors
Performance and stability improvements
Sudoku - Classic Brain Puzzle version 2.8.9
Updated At: 2023-12-12
Changes: Thank you for all your feedback, which will help us make a great game!
Global leaderboard now available
Performance and stability improvements
Sudoku - Classic Brain Puzzle version 2.8.8
Updated At: 2023-07-18
Changes: Thank you for all your feedback, which will help us make a great game!
More languages localized
Performance and stability improvements
Sudoku - Classic Brain Puzzle version
Updated At: 2021-05-07
Changes: Thank you for all your feedback, which will help us make a great game!
Now you can customize your own input keypad
Fix bugs
Sudoku - Classic Brain Puzzle version 2.8.3
Updated At: 2020-05-19
Changes: Thank you for all your feedback, which will help us make a great game!
Redesign the keypad button and improve user experience
Now the hint function will be available in all games
Refine anti-cheating feature in Champion's Challenge
Fix bugs
Sudoku - Classic Brain Puzzle version 2.8.2
Updated At: 2020-03-27
Changes: Invite your friends to Sudoku and get reward!
In champions challenge you can now watch the game playback of the champion
Improve startup speed
Fix bugs
Disclaimer
Official Google Play Link
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