Update 1.8.3

Meet Sudoku - Version 1.8.3 Release Notes

### Additions and Improvements

- Added Undo support, fully integrated with operations like color marking

- Added multi-color marking support, including continuous coloring by holding down the mouse button

- Added a wide range of color themes

- Added selection styles and a cursor; added previews for the board and selection states

- Added adjustable board line settings

- Added adjustable thickness and spacing for dashed chain lines

- Added support for configuring key combinations for cross-border input

- Optimized multi-selection functionality; added "Mouse Multi-select" and "Key-based Multi-select" modes

- Mouse multi-selection now supports continuous selection via click-and-drag

- Key-based multi-selection supports customizable modifier keys (e.g., Shift)

- Optimized selection, note-taking, and highlighting logic for "Number-First" mode

- Optimized candidate highlighting and added a feature introduction

- Automatic note clearing now synchronizes with Variant Sudoku rules

- In "Fog of War" mode, notes can now be added to unrevealed cells, though numbers cannot be entered directly

- Optimized technique hints; added options to select or deselect all techniques

- Added support for exiting training mode from the technique hint screen

- Added option to hide tutorial prompts

- Added a button to exit the tutorial

- Merged the Pause menu and the ESC menu

- Simplified difficulty levels for Daily Goals

- Optimized the difficulty sorting of Sudoku techniques

### Variant Sudoku Improvements

- Optimized display scaling for Variant Sudoku overlays (e.g., XV, Odd/Even) to fit various screen sizes and devices

- Irregular Sudoku (Jigsaw) regions now use distinct region lines; original grid lines removed

- Optimized Killer Sudoku cage outlines, dividers, and top-left digit displays

- Generated a "Normal" difficulty puzzle bank for Killer Sudoku

- Optimized Variant Sudoku rules and automatic note-clearing logic

### Sudoku Techniques

- Audited the Sudoku technique puzzle bank and regenerated example puzzles that did not meet standards

- Fixed an issue where Sudoku technique tutorial levels had multiple solutions

- Corrected erroneous descriptions regarding the "Empty Rectangle" technique

- Fixed an issue where automatic and manual chain drawing yielded inconsistent results

- Optimized the logic for determining strong and weak links during chain drawing

- Drag-selecting no longer accidentally triggers highlighting for identical numbers

### Campaign & Daily Sudoku

- Optimized the level completion flow; the next level now displays correctly after finishing a stage

- Fixed an issue where the screen would freeze if the "Next Level" button wasn't clicked after completion

- Changed the "Back" button behavior in Killer Sudoku to return to the Home screen

- Fixed an issue where Daily Sudoku records were not correctly saved for the current day

- Optimized the Daily Sudoku interface display

### Achievement System

- Fixed an issue where "Novice" and "Expert" achievements for Killer Sudoku were not awarded correctly upon completion

- Optimized the logic for consecutive completion tracking; calculations are now based on the activity calendar

### User Experience

- Highlighting for identical numbers now persists after quickly deleting notes via right-click

- Fixed an issue where notes could not be cleared via right-click after multi-selecting with Shift in "Number-First" mode

- Fixed an issue with abnormal keyboard selection states in "Number-First" mode

- Fixed an issue where game controls would intercept text input when using Chinese IMEs

- In Classic Sudoku, re-entering a number now only processes the incorrectly entered digit

- Color marking now supports smoother continuous operation

### Audio & Interface

- Optimized music playback logic; music now plays only on the game screen

- Music stops automatically when returning to the Home screen from the game screen

- Fixed an issue where the Daily Sudoku AppBar color was not rendering correctly

- Optimized interface adaptation for various devices and window sizes

### Stability

- Optimized overall game performance to reduce stuttering

- Fixed a potential crash occurring when switching windows on Windows

- Further optimized game stability