How to Play (Sudoku rules)
Sudoku is a logic-based puzzle where you complete a 9x9 grid by filling in missing numbers. Every row, column, and 3x3 box must contain digits 1 through 9 exactly once.
When the puzzle starts, several numbers are pre-filled. Follow these 3 simple rules:
No number can appear more than once in any row.
No number can appear more than once in any column.
No number can appear more than once in any 3x3 section.
Use logic and deduction to solve the puzzle. No guessing required.
Next Steps
Continue Your Sudoku Path
These guides and puzzle pages are selected for the page you are on, so you can move naturally to the next skill, level, or practice route.
Start Here
If you are new to sudoku, use these pages to move from the rules into your first easy wins and then into strategy.
Beginner Hub Sudoku for Beginners Follow the cleanest path from the rules to your first few successful puzzles.Rules Sudoku Rules Review the official row, column, and box rules before you push further into the grid. Very Easy Sudoku Online Explore the next related page in this sudoku topic cluster. Sudoku Solver Explore the next related page in this sudoku topic cluster.Hub Sudoku Techniques Browse the full technique path, from beginner singles to advanced fish patterns.