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Sudoku rules

- Sudoku is played over a 9x9 grid, divided to 3x3 sub grids called "regions":

Region

- Sudoku begins with some of the grid cells already filled with numbers:

- The object of Sudoku is to fill the other empty cells with numbers between 1 and 9 (1 number only in each cell) according the following guidelines:

1. Number can appear only once on each row:

Allowed    
     
Not allowed    

2. Number can appear only once on each column:

Allowed

Not allowed

     

3. Number can appear only once on each region:

Allowed

Not allowed

     

- A summary of these guidelines would be, that a number should appear only once on each row, column and a region.

New Uploads:
8
4 1
3
Easy
28- Apr -2015
3
6
Hard
28- Apr -2015
1
3 2
Hard++
28- Apr -2015
4 9
Hard
28- Apr -2015
4
Hard
28- Apr -2015
8 5
4
Hard++
27- Apr -2015




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