What are the rules of Sudoku?
The rules of sudoku are quite straightforward, and this makes it easy to grasp and start playing.
You are presented with a grid that has some cells already filled with a number, whilst most cells are empty.
The rules of the puzzle are simple: fill the grid with the numbers 1 - 9 in such a way that:
- each row, each column and each 3 x 3 box contains the numbers from 1 - 9 once and once only.
Note that if the dimensions of the puzzle are different, e.g. 6 x 6, then of course it is the numbers 1 - 6 that must be placed once only.
A valid sudoku puzzle has one unique solution that can be reached through using logic alone and no need to guess.
Most popular questions in puzzle category:
What does Sudoku mean?
There are lots of theories as to what this means, but most...
What is Skyscraper Sudoku?
There is a type of puzzle called a skyscraper, in which...
Where can I get a blank grid for Sudoku?
We have made available blank grids for both sudoku and...
Publishers:
View a list of puzzles for publication with pictures of each.
Contact us about buying puzzles
Individuals:
Play hundreds of puzzles for personal enjoyment online at the Puzzle Club
Large range of printable puzzles for personal use downloadable at Puzzle Magazine website.
View a list of puzzles for publication with pictures of each.
Contact us about buying puzzles
Individuals:
Play hundreds of puzzles for personal enjoyment online at the Puzzle Club
Large range of printable puzzles for personal use downloadable at Puzzle Magazine website.
Search Puzzle FAQ