I haven't had the patience to finish one...I'm always busy doing something

My new obsession are these Math puzzles called Sudoku's. It's a 3x3 graph of 3x3 squares and you have to fill in the missing numbers so that each column and each row and each 3x3 box contains the numbers 1,2,3,4,5,6,7,8,9 without repeating.
It's one of those logic puzzles....
Man....I need a life
Sudoku