# Getting Started With Sudoku

The aim is to fill in the whole grid – and depending on the difficulty of the puzzle this can be quite easy (just counting and checking), or later on for more tricky puzzles require a bit more logic and reasoning.

### The Rules of Sudoku

Fill a number in to every cell in the grid, using the numbers 1 to 9

You can only use each number once in each row, each column, and in each of the 3×3 boxes