1.Added technique training mode 2.Improved puzzle generation with new Advanced and Master difficulties for smoother progression 3.Added quick input mode,long press and double tap to enter numbers quickly 4.Added puzzle printing feature 5.Improved chain drawing logic 6.Removed maximum mistake limit

1. Optimized number selection logic in locked input mode 2. Improved game completion prompt UI

1. Added advanced technique hints and removed hint usage limits 2. Added Sudoku technique documentation 3. Added input lock mode 4. Fixed known issues

Fixed the issue of a gray screen during startup caused by language mismatch.

1. Added toggle for icon text labels 2. Added toggle for note number background border 3. Improved cell selection logic in drawing mode 4. Added ability to clear cell selection by tapping blank areas 5. Fixed known issues

1.Updated chain-drawing logic to use selectable start and end points. 2.Improved UI by adding text labels to icons and refining candidate background behavior. 3.Fixed audio playback issues. 4.Added region completion animation.

Fix issues.

1.Fixed an issue where drawing was not fully displayed on SE devices. 2.Fixed known issues.

Fix issues.

1.Added line drawing and coloring features. 2.Completed games can now choose to display the solution when sharing. 3.Added landscape mode support for iPad mini.

1.Fixed lag issue when starting a new game after completing a level. 2.Adjusted the logic for highlighting note numbers.

1.Added iCloud sync feature to automatically back up level data and current progress to iCloud. 2.Added FAQ section. 3.Fixed an issue where disabling “highlight same numbers” didn’t work in some cases.

1. Fix ui issues.

1. Added Master Mode with 200 classic high-difficulty Sudoku puzzles. 2. Fixed double-tap input issue. 3. Optimized iPad landscape UI.

1. Added display for remaining unfilled numbers 2. No limits on mistakes and hints in Easy and Medium difficulties 3. Fixed some known issues

1. Added dark mode support, with toggle in Settings 2. Added note highlighting for identical numbers 3. Optimized theme colors for better visual experience 4. Added option to adjust board number size 5. Fix issues

1. Optimize the experience of undoing one-click notes.

1. Added the function of removing notes added by one-click note. 2. Fix issues.

1. Optimize performance and greatly improve the smoothness of the game board 2. Fix share UI issues

Added free mode, play like on paper! Added beginner tutorial. Fixed bugs.