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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.

127440029 puzzles downloaded.

6 8           7  
    5     3   2  
  4             6
          6 1    
8         9     4
9       1   2    
        3        
    3         8 7
    7 5   1 6   3
Showing puzzle number: 3596415
Puzzletype: Optimal Sudoku
Startnumbers: 25
Difficulty: Very easy (0)
Solution methods: SiSo SC
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