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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.

100140138 puzzles downloaded.

  2     3 9   8  
    9       5    
      7 4        
2         5 3    
5   4   1   8   2
    6 8         5
        8 3      
    1       9    
  6   1 7     3  
Showing puzzle number: 2959588
Puzzletype: Symmetrical Sudoku
Startnumbers: 27
Difficulty: Very hard (0)
Solution methods: SiSo SC SB DS NS
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