How to Play Sudoku
Sudoku is a classic logic puzzle played on a 9x9 grid. The goal is to place the digits 1 through 9 so every row, column, and 3x3 box contains each digit once.
Basic Sudoku rules
- Each row must contain 1 to 9 without repeats.
- Each column must contain 1 to 9 without repeats.
- Each 3x3 box must also contain 1 to 9 without repeats.
Beginner tips
Start with rows, columns, or boxes that already contain many digits. Look for cells with only one possible candidate before using notes for harder positions.
Play online Sudoku or continue with Sudoku strategies.
FAQ
What is the goal of Sudoku?
Fill every empty cell so each row, column, and 3x3 box contains the digits 1 through 9 once.
Can a row repeat a digit?
No. Each digit can appear only once in a row.
Do I need math to solve Sudoku?
No arithmetic is required. Sudoku is solved with observation, candidates, and logic.