Smart Hint System: Stuck on a tricky puzzle? Use the new Check Errors (lightbulb icon) to reveal mistakes. Play strategically—using hints is helpful but adds a small XP penalty to keep the challenge real! Game Info & Rules: New to Sudoku or curious about scoring? We've added a comprehensive Info Section explaining everything from basic rules to XP breakdowns and difficulty levels. Refined Interface: We've streamlined the header to give you more breathing room. All your tools—Achievements, Themes, and Hints—are now neatly organized and easier to tap. Fair Play Improvements: Fixed an issue where the same puzzle could be solved multiple times for extra points. Now, once a puzzle is complete, your victory is locked in! Performance & Polish: Improved touch responsiveness on the game board and updated the typography for a more premium, "expressive" Material 3 feel.

XP & Leveling: Earn experience for every puzzle you solve! Can you reach the next level? Daily Streaks: Play every day to keep your streak alive. Theme Support: Choose between Light, Dark, or System Default modes. UI Polish: Improved buttons, larger touch targets, and a smoother overall experience.