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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.

211190 puzzles downloaded.

          1      
          5 8    
                 
  3         9    
4               1
    7         6  
                 
    3 6          
      4          
Showing puzzle number: 36
Puzzletype: Symmetrical Sudoku
Startnumbers: 12
Difficulty: Super hard (169)
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