Classic Sudoku

Play Free Online Puzzle Game

Classic Sudoku is a popular logic puzzle game that has been enjoyed by millions of people around the world for decades. Our free online Sudoku game is a great way to challenge your mind and improve your problem-solving skills.
To play Classic Sudoku, simply fill in the 9x9 grid so that every row, column, and 3x3 box contains the digits 1 to 9. Our game includes helpful features like highlighting duplicates and showing errors to help you solve the puzzles. We also offer different levels of difficulty, ranging from easy to hard, so you can choose the perfect puzzle to suit your skill level.

Playing Classic Sudoku online is a great way to improve your cognitive skills, including memory, concentration, and logical reasoning. Sudoku is a popular logic puzzle that can help you improve your problem-solving skills and keep your mind sharp.

Our Classic Sudoku game is easy to use and suitable for players of all levels of expertise. You can play on your computer, tablet, or mobile device, making it easy to enjoy Sudoku wherever you go.

So why wait? Play Classic Sudoku online for free today and challenge your mind with our collection of puzzles. Whether you're a beginner or an experienced Sudoku player, our game is sure to provide you with hours of fun and entertainment.

Game Options

Choose your preferred difficulty level and start playing:

4 X 4 sudoku
Sudoku for kids

6 X 6 sudoku
Easy sudoku
Middle sudoku
Hard sudoku
Expert sudoku

9 X 9 sudoku

Easy
1Level - 36clues
2Level - 35clues
3Level - 34clues
4Level - 33clues
5Level - 32clues
6Level - 31clues

Medium
7Level - 30clues
8Level - 29clues

Hard
9Level - 28clues
10Level - 27clues

Expert
11Level - 26clues
12Level - 25clues

Expert - Silver
13Level - 24clues
14Level - 23clues
15Level - 22clues
16Level - 21clues
17Level - 20clues

Expert - Gold
18Level - 19clues
19Level - 18clues
20Level - 17clues