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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.

135085153 puzzles downloaded.

      5   7      
4 8     9   7    
    5   2        
2     4   9     3
  9 8       2 4  
3     2   5     8
        3   1    
    1   4     8  
      7   1   6  
Showing puzzle number: 2351562
Puzzletype: Slider Symmetrical Sudoku
Startnumbers: 28
Difficulty: Super hard (154)
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