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Sudoku puzzles (Su Doku)

My database includes 936 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every box contains the digits 1 through 9. The grey boxes is even numbers and the white boxes is odd. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

271785 puzzles downloaded.

            6    
          8      
          3   1  
          1      
                 
      4          
  6   7          
      5          
    9            
Showing puzzle number: 319
Puzzletype: Symmetrical Sudoku
Startnumbers: 10
Difficulty: Very hard (0)
Solution methods: SiSo SC SB DS DC SF NS FI
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