SUDOKU - Weekly

Sudoku are easy to learn yet highly addictive language independent logic puzzles which have recently taken the whole world by storm. Using pure logic and requiring no math to solve, these fascinating puzzles offer endless fun and intellectual entertainment to puzzle fans of all skills and ages.
Sudoku is a number-placing puzzle based on a 9x9 grid with several given numbers. The object is to place the number 1-9 in the empty squares so that each row, each column and each 3x3 box contains the same number only once. Sudoku puzzle come in endless variations and range from very easy to extremely difficult taking anything from five minutes to several hours to solve.

Rules:
Sudoku rules are extremely easy : Fill all empty squares so that the numbers 1 to 9 appear once in each row, column and 3x3 box.