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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.

221171 puzzles downloaded.

          6 2    
                 
  5       2   7 4
          7      
                 
      1          
9 4   6       8  
                 
    1 7          
Showing puzzle number: 423
Puzzletype: Symmetrical Sudoku
Startnumbers: 14
Difficulty: Very hard (0)
Solution methods: SiSo SC SB XW FI
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