Play Sudoku Online
What is Sudoku?
Sudoku is a logic-based number placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 subgrids that compose the grid contains all of the digits from 1 to 9.
This classic puzzle game originated in Switzerland and was popularized in Japan. Today, Sudoku is one of the most popular puzzle games in the world, enjoyed by millions of people daily.
How to Play Sudoku
Sudoku follows three simple rules:
- ✓ Each row must contain the numbers 1-9, without repetition.
- ✓ Each column must contain the numbers 1-9, without repetition.
- ✓ Each of the nine 3×3 sub-grids must contain the numbers 1-9, without repetition.
The puzzle starts with some cells already filled in. Your task is to logically deduce which numbers go in the empty cells. No guessing is required – every Sudoku puzzle has a unique solution that can be reached through logical reasoning alone.
How to Play Online
Playing Sudoku online is easy and intuitive:
- Click on any empty cell to select it.
- Use the number keys (1-9) on your keyboard to fill in numbers.
- Press Backspace or Delete to clear a cell.
- You can also use the on-screen number pad for mobile devices.
Our online Sudoku game automatically checks for errors and highlights conflicts to help you learn and improve your skills.
Benefits of Playing Sudoku
- ✓ Improves logical thinking and problem-solving skills
- ✓ Enhances concentration and focus
- ✓ Provides mental exercise and stress relief
- ✓ Suitable for all ages and skill levels