Start by putting in all the obvious numbers first. When you first Look at your puzzle start off by scanning the rows to see if the same number, (for example 3) is already in two of the three rows. If it is than it's easy to determine where you should put the third number. Never guess! learning how to solve sudoku puzzles takes patience, but it's not as hard as it looks. Only enter a number into the sudoku grid if your positive it goes there, if your not sure or in doubt use a pencil and lightly enter the possibilities into the cell. Another approach you can use is to divide the puzzle into smaller sections. tackling all 9 x 9 grids at the same time can be intimidating. The solution is to cut the puzzle into smaller slices and than focus on each piece one by one. Try to put your attention on each of the smaller 3 x 3 Sudoku grids and then systematically work your way out. Concentrate on trying to solve the mini-grids first, before you start scanning down the rows and columns! Sudoku is a game of logic and it is only logical to approach it prepared with a proper knowledge of all the available solving techniques.