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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.

135716050 puzzles downloaded.

          1   6  
  7   3   6     8
5               4
    7 9          
  6     5        
8 1              
  2   4   7 3   1
                 
      1 3   5 2 7
Showing puzzle number: 4371105
Puzzletype: Optimal Sudoku
Startnumbers: 24
Difficulty: Very easy (0)
Solution methods: SiSo SC
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