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- Category
- 🧩 Puzzle & Brain
- Name
- Sudoku Classic – Daily Brain Puzzle
- Rating
- ⭐ 4.5 / 5
- Plays
- 241.4K
- Play type
- Browser
- Free
- Yes
About the Game
Sudoku Classic – Daily Brain Puzzle is a polished, distraction-free take on the world's favourite number puzzle. The goal is familiar: fill a 9×9 grid so that every row, column, and 3×3 box contains the digits 1 through 9 with no repeats. With fresh puzzles generated daily and four difficulty tiers — Easy, Medium, Hard, and Expert — there is always a new challenge calibrated to your current skill level.
What lifts this version above a basic Sudoku app is its suite of thoughtful quality-of-life features. A built-in hint system nudges you toward the correct digit without handing you the full solution, keeping the sense of discovery intact. Auto-save means you can close the tab mid-puzzle and return exactly where you left off, and pencil-mark support lets you jot candidate numbers in cells before committing to a final answer — an essential tool for harder grids.
Sudoku Classic is a great fit for commuters looking for a calm mental exercise, puzzle fans chasing a daily streak, or anyone wanting to sharpen their logical reasoning. It plays flawlessly in the browser on both desktop and mobile with no download or registration required. Simply open the page and start filling in the grid.
How to Play
- Select a difficulty — Easy to warm up, Expert for a serious brain workout.
- Tap or click an empty cell to select it, then type a digit (1–9) or tap the on-screen number pad.
- Use pencil-mark mode to note candidate numbers in uncertain cells without committing to an answer.
- Tap the Hint button if you're stuck — it reveals the correct number for the selected cell.
- Fill every row, column, and 3×3 box with the digits 1–9 to complete the puzzle.
Tips & Tricks
- Start with the row, column, or box that already has the most digits filled in — fewer unknowns means faster logical deductions.
- Scan for 'naked singles' — cells where only one digit can legally fit — before trying anything more complex.
- Use pencil marks aggressively on Hard and Expert puzzles to track possibilities and avoid losing your train of thought.
- If you're genuinely stuck, step away for a few minutes; a fresh look almost always reveals a pattern you missed.
- Play the daily puzzle every day — consistent practice builds the pattern-recognition speed that makes harder grids feel easier.
FAQ
How many difficulty levels are available?
There are four levels — Easy, Medium, Hard, and Expert — so both beginners and seasoned solvers will find the right challenge.
Does the game save my progress automatically?
Yes, auto-save preserves your current puzzle state so you can close the browser and pick up exactly where you left off.
Can I play Sudoku Classic on my phone?
Yes, the game is fully responsive with a touch-friendly number pad, making it comfortable to play on any phone or tablet.
Are new puzzles added every day?
Yes, a fresh set of puzzles is generated daily, ensuring regular players always have unseen grids to solve.