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Sudoku puzzles (Su Doku)

My database includes 6913752 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every 3x3 box contains the digits 1 through 9. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

103425822 puzzles downloaded.

  5   6   2      
4   6            
1   8 9 5 4      
3   2 8     6   1
    7       3    
5   1     3 4   9
      5 2 9 1   7
            5   4
      4   7   9  
Showing puzzle number: 5214890
Puzzletype: Symmetrical Sudoku
Startnumbers: 32
Difficulty: Super hard (23)
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