The Sudoku is an addictive number puzzle game that has become one of the most popular puzzle games ever created. It is played using a 9 x 9 grid that is divided into nine equal boxes. The objective of the puzzle is to place the numbers from 1 to 9. Each number must appear only once in every row, column and box. 

For beginners, here are two steps which can be helpful in solving the sudoku. Be sure to follow each step carefully and correctly to have a better chance of solving the puzzle.

First step is to look for single choices. Single choices may be found by counting the numbers given in a row, the intersecting column and the box where the row and column intersect. If the row, column and box have eight of the numbers from 1 to 9, the cell common to both the row and the column is the only place the ninth number may go. Another way to find single choices is to take a given number in a row and look for the same number in the next box. If the number is missing, the right place will be on either of the two rows. Check the two other rows for the same number. If you end up with only one cell available for your number, this is also a single choice.

Second step is similar to step one, but this time do the columns.

When done with the columns do step one again, but this time focus on the new numbers you have placed. If you end up with unsolved cells with this two-step approach you need more advanced sudoku solving strategies.