Sudoku: Classic Offline Puzzle

The classic number puzzle, ready whenever you are. No Wi-Fi needed.
Sudoku is the timeless logic game that millions play every day. Fill the 9x9 grid so every row, every column and every 3x3 box contains the numbers 1 to 9, each exactly once. No math required, just pure logic. Pick a level that suits your mood, from a relaxing Easy puzzle to a brain-bending Extreme challenge.
HOW TO PLAY
• Fill each empty cell with a number from 1 to 9
• Every row must contain each number only once
• Every column must contain each number only once
• Every 3x3 box must contain each number only once
• Complete the grid to solve the puzzle
SIX DIFFICULTY LEVELS
🟢 Easy: perfect for beginners learning the rules
🔵 Medium: a steady challenge for regular players
🟠 Hard: for players who know their techniques
🔴 Expert: deeper logic, fewer starting numbers
🟣 Master: tough puzzles for seasoned solvers
⚫ Extreme: the ultimate test for sudoku pros
SMART TOOLS
✏️ Notes: pencil in candidate numbers, just like on paper
💡 Hint: reveals a correct number when you're stuck
↩️ Undo: take back your last move
🧽 Eraser: clear a cell and try again
GAME FEATURES
🧩 Classic 9x9 sudoku puzzles
🧩 Six levels from Easy to Extreme
🧩 Notes, Hint, Undo and Eraser tools
🧩 Fully offline: play on a flight, on the subway, anywhere
🧩 Clean, easy-to-read number grid
If you enjoy number puzzles, logic puzzles, killer sudoku, crosswords or brain teasers, this classic sudoku will become your favorite daily brain workout.
Choose your level, place your first number and start solving. Download Sudoku now! 🧠