Sudoku Guru

Play Sudoku anytime — classic puzzles, daily challenge, and smart hints in your browser.

Sudoku Guru — play Sudoku anytime in your browser. Classic puzzles from Easy to Expert, a fresh Daily Challenge every day, smart hints, notes, and a calm, focused board. Open it from the toolbar side panel or in a full tab — your progress stays on your device. Why Sudoku Guru • Clean 9×9 board with clear highlighting and mistake checking • Notes mode and Fast mode for faster solving • Smart hints that teach, not just fill cells • Daily Challenge with streak tracking • Stats, achievements, and XP as you improve • Dark mode and gameplay settings you control • Works offline — no account required How to play Click the Sudoku Guru icon to open the side panel (or use Open in tab for a bigger board). Tap Play, pick a difficulty, and start filling cells. Use Notes for pencil marks, Fast mode to paint digits quickly, and Hints when you’re stuck. Come back anytime — unfinished games resume automatically. Privacy Sudoku Guru stores your preferences, stats, streak, achievements, and saved game only in your browser. There is no account and no server sync. You can clear all local data anytime in Settings. Perfect for Quick puzzles between tabs, daily brain training, and focused Sudoku sessions on desktop or tablet.