Master the art of Sudoku with these simple controls and strategies
Click any cell and select a number from the keypad or use keyboard numbers 1-9
Use number keys 1-9 to enter values quickly, or Delete/Backspace to clear cells
Press N key to toggle note mode for candidate numbers
Press A key to automatically show possible numbers
Use the hint button to get help when you're stuck (limited to 3 per game)
Use Delete or clear button to remove numbers
Master these three fundamental principles to become a Sudoku champion
Each horizontal row must contain all numbers from 1-9 exactly once
Each vertical column must contain all numbers from 1-9 exactly once
Each 3×3 sub-grid must contain all numbers from 1-9 exactly once
Pro Tip
When all three rules are satisfied simultaneously, you've solved the puzzle! 🎉
You have successfully solved the Sudoku!
You made too many mistakes. Would you like to try again?