Sudoku, sometimes spelled Su Doku(sudoko,sodoku), is a placement puzzle, also known as Number Place in the United States.
* Enter digits from 1 to 9 into the blank spaces.
* Every row must contain one of each digit. So must every column, as must every 3x3 square.
* It has a unique solution that can be reached logically without guessing.
* It's fun. It's challenging. It's addictive!
The Extremely hard sudoku puzzles which I came across the Web.
In it are 28 JPEG's (22 Sudoku's And 6 pages - Answer key)
Useful mirrors for explaining how to resolve even the most difficulty Sudoku games:
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Sudoku kindly provided by tran70 on Rapidshare - Thanks
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