Jump straight into a puzzle with Final Sudoku. Pick your difficulty, tap to place numbers, and use smart hints when you need a nudge. No downloads required.
A Logic-Based Sudoku Experience
Final Sudoku offers a clean, distraction-free Sudoku experience right in your browser. Choose from easy, medium, hard, or expert difficulty levels and start solving immediately.
Pure Logic, One Solution - Every puzzle is generated with a single solution and designed to be solved through logic, not guesswork.
Smart Candidates and Notes - Auto-fill candidates anytime and keep them clean with optional automatic candidate cleanup.
Layered Hints - Start with a nudge. Get more detail if needed. Reveal the answer only as a last step.
Unlimited Undo and Redo - Solve freely. Backtrack instantly. Keep your flow.
Add Your Own Puzzles - Enter a puzzle from a newspaper, book, magazine, or online challenge and solve it using all of our tools.
Cell Coloring Tool - Tap the Color button then tap any cell to cycle through four background colors. Use it to track candidates, test strategies like Coloring, and organize your solving visually.
Ready to put your skills to the test?
Try Final Sudoku - an ad-free Sudoku experience with smart tools