What Is Sudoku?

What Is A Suduko Puzzle?

A sudoku puzzle consists of a 9 x 9 square grid of 81 cells, sub-divided into nine 3 x 3 sub-grids.

Each of the nine rows and each of the nine columns must contain every number from one to nine, with each number only appearing once. Each 3 x 3 sub-grid must also contain every number from one to nine, with each number only appearing once.

In every sudoku puzzle some numbers are already printed in the cells and the puzzler has to fill in the blanks. It’s not so much a math puzzle as a question of deduction and logic. By looking at how the existing numbers appear in the squares, the missing numbers can be worked out by a process of elimination.

Sounds complicated? Actually, it’s not. Sudoku is a simple game with rules that you can easily remember. And it can become addictive: once beginners get to grips with the easy puzzles they can quickly graduate to the more challenging ones and really enjoy the game.

So, why not join Sarah in solving Sudoku puzzles?

Sudoku puzzles of all levels