Sudoku rules

What is the overall goal of Sudoku?

Sudoku is a puzzle game using numbers that can be solved entirely with numbers 1 to 9 and logic. It is important to remember that since these are logical puzzles, no guessing is allowed to find which number should be assigned to a cell. Well designed Sudoku puzzles only have one unique solution.

What are the rules of Sudoku?

• The game is played on a 9x9 grid that is further broken down into 3x3 blocks (nonet).
• Players can only enter numbers from 1 to 9 into each cell on the grid.
• Each row must be filled in with the numbers 1 to 9 without duplicates.
• Each column must be filled in with numbers 1 to 9 without duplicates.
• Each 3x3 block must be filled in with numbers 1 to 9 without duplicates.
• Each game starts with cells already filled in to help players find the unique solution.
• The game is completed once a player fills in all cells with the correct numbers.