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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.

135866658 puzzles downloaded.

        7 2      
6                
8           6 4  
4 2           6  
    5   6 7      
1   3           9
      3 9        
              1 2
  3     1   9   8
Showing puzzle number: 6535439
Puzzletype: Optimal Sudoku
Startnumbers: 23
Difficulty: Very easy (0)
Solution methods: SiSo SC
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