Tracking since Sep 18 — growth appears once we have a second daily reading.
Update history
2.0Mar 24, 2026 · seen Sep 18, 2026
Optimized overall user experience and improved performance.
Only the current version so far — new entries appear as the game ships updates.
Welcome to Classic Sudoku, a number puzzle game designed for anyone who enjoys logic thinking and brain training. Whether you're looking for an easy sudoku for beginners or a hard sudoku puzzle for experienced players, this classic sudoku game offers multiple difficulty levels to match your skills.
**Game modes by difficulty:**
* **Easy sudoku level:** Learn sudoku rules and basic solving techniques with an easy sudoku for beginners.
* **Medium sudoku difficulty:** A balanced challenge for everyday sudoku practice.
* **Hard sudoku level:** Test your logic with more advanced number placement puzzles.
* **Expert sudoku challenge:** Solve the hardest sudoku puzzles and sharpen your logical thinking.
**Helpful tools while playing:**
* **Pencil marks (Notes mode):** Record candidate numbers in every cell.
* **Undo:** Reverse any move without losing progress.
* **Hints:** Get helpful guidance whenever you need it.
* **Error checking:** Detect conflicting numbers and avoid mistakes.
* **Highlight same numbers:** Quickly find matching numbers across rows, columns, and 3×3 blocks.
* **Timer with pause:** Track your solving time and play at your own pace.
**Daily sudoku challenge & practice:**
* Enjoy a fresh daily sudoku puzzle every day to improve memory and concentration.
* Daily sudoku practice helps strengthen logic skills while providing a relaxing puzzle experience.
* Play completely offline with no internet connection required, making this offline sudoku puzzle perfect for travel, commuting, or quiet moments.
**Designed for everyone:**
* A relaxing sudoku puzzle game for adults who enjoy classic number puzzles.
* Beginner-friendly gameplay that makes learning sudoku simple and enjoyable.
* Clean design, large numbers, and smooth controls for comfortable play on both phones and tablets.
Whether you're enjoying a relaxing classic sudoku session, taking on an expert sudoku challenge, or solving a quick daily number puzzle during a break, this classic number game is always ready. Train your brain, improve concentration, master logic thinking, and enjoy sudoku puzzle game anytime with daily challenges, notes, hints, and offline play.
