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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.

106915685 puzzles downloaded.

      4   6      
    1   8   3    
4   6       7   2
7       3       9
  4   8   9   3  
6       4       5
1   4       2   7
    2   6   5    
      7   1      
Showing puzzle number: 3645819
Puzzletype: Symmetrical Sudoku
Startnumbers: 28
Difficulty: Super hard (12)
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