What is Sudoku?

Sudoku is a logical puzzle game, originally created in puzzle books and then made available in countless newspapers worldwide.

Many people are put off by seeing a grid with numbers in it, but in fact the puzzle doesn’t require any arithmetic at all – just deduction and logic.

There’s plenty of discussion about what consitutes a Sudoku puzzle, but many Sudoku fans agree:

Of course, for beginner puzzles, often there are more than 30 values filled in – this is just to give you a head start while you’re learning! Many people think that harder Sudoku puzzles are the ones with fewer values filled in to begin with. While this is often the case, there are plenty of frustratingly difficult puzzles available with 28 or more cells filled in – difficult because they really require you to use lots of different solving techniques to complete them.

Find out how we create Sudoku puzzles and rate their difficulty.

Why do Sudoku?

Lots of reasons!

How Do I Get Started?

We’ve put together an absolute beginner set of puzzles and some help on how to get started!