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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.

125328473 puzzles downloaded.

8     1   3     6
3   7     2     5
              7  
1     9 3       7
      4   6      
    9   5 1 8    
  1              
2     5     6   3
5     3   9     4
Showing puzzle number: 5466372
Puzzletype: Slider Symmetrical Sudoku
Startnumbers: 28
Difficulty: Super hard (8)
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