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Sudoku puzzles (Su Doku)

My database includes 936 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every box contains the digits 1 through 9. The grey boxes is even numbers and the white boxes is odd. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

209165 puzzles downloaded.

                9
                5
            7    
                 
  3           8  
                 
    6            
2                
1                
Showing puzzle number: 309
Puzzletype: Symmetrical Sudoku
Startnumbers: 8
Difficulty: Super hard (1331)
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