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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.

31803598 puzzles downloaded.

9 4              
      3 5        
  3 2     9   6  
6       4 2 5   1
                4
2           6   7
8           7    
    9 5         3
          1 8   2
Showing puzzle number: 1846877
Puzzletype: Optimal Sudoku
Startnumbers: 25
Difficulty: Medium (0)
Solution methods: SiSo SC SB DS
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