..:: Fun & Games - SuDoku
..:: Play the Daily SuDoku Game
..:: How To Play SuDoku
As you have probably seen already SuDoku is played on a 9 by 9 grid of squares as shown below:
The SuDoku 9 by 9 grid is split up into 9 separate grids 3 by 3 squares. These smaller grids (3 by 3) are known as "regions". The image below highlights a single region on a sudoku grid :
Ok, now you know about the SuDoku playing field what about the rules. First off a SuDoku grid is never left empty, that would be far too easy. Instead you will find partially filled sudoku grid like the one shown below:
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..:: The Rules of SuDoku
The idea of SuDoku is to fill in all the cells with numbers between 1 and 9. Sounds easy, but there are certain rules that need to be followed:
1. In each region (3 by 3 grid) a number can only appear once, no duplicates:
VALID
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INVALID
(5 appears twice)
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2. In each Row a number can only appear once, no duplicates:
VALID |
|
|
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INVALID
(5 appears twice) |
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3. In each Column, yep you guessed it, a number can only appear once, no duplicates:
VALID
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INVALID
(6 appears twice)
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So to sum up. Fill the grid with the number 1 to 9 making sure a number can only appear once in each row, Column and Region... Simple!...
Play the Daily SuDoku Game
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