Sudoku is a puzzle app that lets you solve classic number-placement challenges. It features a clean, distraction-free design with a simple interface to keep you focused and engaged.
Features:
- Modern GTK4 and libadwaita interface
- Keyboard shortcuts for quick access to all functions
- Save and load games seamlessly to continue your progress anytime
- Highlight active row and cell to improve focus and ease of play
- Conflict highlighting to help identify mistakes, ideal for beginners
- Suitable for all skill levels, from beginners to experts
Screenshots
Observed history
| App | Change | Version | When ↓ |
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No observed changes yet.
The initial import establishes a baseline. Future version changes will appear here.
Browse the app catalogue →Upstream releases
Release notes supplied by the developer. These dates are not Flathub package publication times.
1.8.024 Jul 2026
What's new in 1.8.0:
- You can now place pencil marks automatically with Shift + P
- You can now set a mistake limit in Preferences
- The Continue Game button is now disabled when the current game is complete
- You can now disable popovers in Preferences
- Plus many more improvements and bug fixes!
1.7.010 May 2026
What's new in 1.7.0:
- Pencil notes affected by a correct entry are now automatically removed
- Each editable cell's popover now shows remaining valid inputs for that number
- Preferences and Shortcuts dialogs updated to modern libadwaita style, thanks to Wartybix
- Added Chinese translation, thanks to uaiqop
- Fixed a game state saving bug, thanks to jammie-jelly
- And many more improvements and fixes!
1.6.124 Feb 2026
What's new in this update:
- Resolved issues with the Diagonal Sudoku variant for smoother gameplay, thanks to @RachaelsDen!
- Added automatic saving of your preferences.
- Enhanced the user interface, thanks to Tobias Bernard and Ignacy Kuchciński for their helpful reviews!
- Refreshed the game's icon for a cleaner look, thanks to Jakub Steiner!
- Added German translation, thanks to tronta!
- And many more improvements and fixes!
1.5.026 Sept 2025
Bugfixes and new features:
- Added Diagonal Sudoku support!
- Added Preferences. Users can now disable/enable cell highlighting based on the sudoku variant they're playing.
- Added Casual Mode. When on, entries are checked against the solution. When off, only rule violations are flagged.
- Fixed a bug that made blocks untouchable after completion.
- Updated the About section.
- Note addition popover now stays open unless the user presses the Done button.