About This Game
Sudoku is a number-placement logic puzzle. The goal is to complete the grid so every row, column and three-by-three box contains the digits 1 through 9 exactly once.
How to Play
- Choose a difficulty and inspect the given numbers.
- Enter one digit from 1 to 9 in each empty cell.
- Complete every row, column and box without repeating a digit.
Controls
- Select an empty cell and enter 1–9
- Use Check to highlight mistakes
- Use Hint when you need one answer
Tips and Strategies
- Look for rows, columns or boxes with only one missing number.
- Use elimination before making a guess.
- Recheck a number against all three constraints: row, column and box.
Frequently Asked Questions
Do I need to be good at maths?
No. Sudoku uses logic rather than arithmetic; the numbers work as nine distinct symbols.
Are hints required?
No. Hints are optional and reveal one correct value when requested.
