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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.

135943087 puzzles downloaded.

      7   4      
  1           2  
4   3   9 1 8   7
1 4   2 3     9  
                 
  9     8 7   4 6
6   9   7 5 2   1
  3           8  
      8   3      
Showing puzzle number: 5137493
Puzzletype: Slider Symmetrical Sudoku
Startnumbers: 30
Difficulty: Super hard (7)
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