Sudoku Master

Sudoku Sigma is a clean, distraction-free Sudoku experience designed for players of every skill level. Whether you're picking up Sudoku for the first time or chasing your best time on Expert, every puzzle is crafted to challenge without frustrating.

FIVE DIFFICULTY LEVELS
• Beginner – Perfect for first-timers
• Easy – Perfect for beginners
• Medium – Some deduction required
• Hard – Advanced logic needed
• Expert – Maximum challenge

SMART TOOLS
• Pencil Notes – jot candidate numbers without committing
• Auto-Remove Notes – notes clear automatically when you place a digit
• Undo – step back from any mistake
• Hints – reveal a cell when you're truly stuck
• Error Highlighting – instantly see incorrect entries

POLISHED GAMEPLAY
• Live timer with pause support
• Save and resume any game right where you left off
• Highlight related rows, columns, and boxes on selection
• Remaining-count badges on each digit so you always know what's left

TRACK YOUR PROGRESS
• Per-difficulty statistics: games played, win rate, and best time
• Mistakes counter per puzzle

LOOKS GREAT EVERYWHERE
• Light, Dark, and system-adaptive themes
• Fully localized in English, German, French, Spanish, Arabic, Persian, Japanese, and Chinese

No accounts. No timers forcing you to pay. Just pure Sudoku.