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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.

270347 puzzles downloaded.

      2          
              4  
                 
        9   5    
3               9
    8   1        
                 
  7              
          8      
Showing puzzle number: 253
Puzzletype: Symmetrical Sudoku
Startnumbers: 10
Difficulty: Very hard (0)
Solution methods: SiSo SC SB DS NS FI
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