AkousaPuzzle
Sudoku
Fill the 9×9 grid so every row, column, and box contains digits 1–9 exactly once.
About Sudoku
Sudoku is a logic-based number placement puzzle that became a worldwide phenomenon in 2004–2005. Fill a 9×9 grid with digits 1–9 so that each row, column, and 3×3 box contains all digits exactly once.
How to Play
Click a cell to select it, then type a number from 1 to 9. Each row, column, and 3×3 box must contain each digit exactly once. Use Notes to pencil in candidates, and Hint if you get stuck.
Tips & Strategies
- Start with rows, columns, and boxes that already have the most numbers filled in.
- Use Notes mode to track possible candidates for each empty cell.
- Apply the naked single technique: if only one number fits a cell, place it immediately.
- Look for hidden singles — a digit that can only go in one cell within a row, column, or box.
- Master Easy before moving to Hard — each level introduces new logic patterns.
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Frequently Asked Questions About Sudoku
What is Sudoku?
Sudoku is a free browser game available on akousa.net, a platform offering 81 free online games across puzzle, arcade, word, and strategy categories. Fill the 9×9 grid so every row, column, and box contains digits 1–9 exactly once.
How do I play Sudoku?
Simply visit the Sudoku page on akousa.net and start playing instantly in your browser — no download or signup required. Your progress and scores are saved automatically.