MarApp Sudoku - Changelog

## Version 1.1.0

**Sudoku Library
– New Premium feature: save Sudoku puzzles to your personal library
– Replay saved puzzles later as fresh games from the original starting grid
– Mark favorite puzzles for easier access
– Add notes to saved puzzles, for example to remember who sent a challenge
– Save imported challenges directly to the library and play them when it suits you
– Track how many times a saved puzzle has been completed and see its best time
– Share saved puzzles as challenges
– Your Sudoku Library is stored locally on your device, with no account or server required

## Version 1.0.7

**New solving techniques and Android display mode fix**
– Fixed an issue where “System default” could not be selected as the display mode on Android
– Added the Sudoku techniques Naked Triple and Hidden Triple

## Version 1.0.6

**Stability and note readability**
– Improved Android stability on the Settings page, especially during scrolling on some devices
– New High-contrast notes option for clearer note visibility in light and dark mode
– New option to confirm before overwriting an existing number
– Initial puzzle numbers remain protected and cannot be changed

## Version 1.0.5

**Input and challenge refinements**
– New option to remember the last used input mode
– Smoother switching between Cell first and Digit first
– More reliable challenge countdown behavior
– Small visual and usability improvements

## Version 1.0.4

**Premium and usability refinements**
– Updated Premium pricing presentation
– Improved touch handling around the number buttons
– Small visual refinements for a smoother Sudoku experience

## Version 1.0.3

**Improved Safe ground**
– Safe ground is now preserved when leaving the game board
– Restores the last safe state when returning later
– More reliable protection while solving

## Version 1.0.2

**Improved challenge system**
– Challenge codes now include time and difficulty
– More reliable results
– Harder to fake completion times

## Version 1.0.1

– UI improvements
– Minor bug fixes

## Version 1.0.0

– Initial release of MarApp Sudoku