Free boredom with" Sudoku "drive 
Jonköpping (ksotenlose environment) - Boredom can distribute for free on the Web site SudokuXL.de. There is the Internet address
http://www.sudokuxl.de an entertaining game to find. It's about missing information or entries that each row, column and each square contains the numbers 1-9. No number may be in a row, column or square occur twice. There are variations Light, Normal, Hard and Expert. The game can be printed out and on paper or done online. When you're finished, you can ask to see on the website the right solution. It is then possible to start a new game.
Sudoku rules
Sudoku is played on a 9x9 grid with 3x3 squares. The goal is to enter numbers in boxes, so that appears in each row, column or box each number 1-9 only once. When you run the Sudoku, are already set out some figures, which serve as references.
The light level is easy for beginners. You start with lots of great information and a simple logic to solve this puzzle.
normal
The normal level is less information and is more demanding.
heavy
The hard levels are only a few references and requires a deeper logic.
professional
are the expert-level very little information and requires some experience and good strategies.
