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Sudoku puzzles (Su Doku)

My database includes 17735 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.

262238 puzzles downloaded.

        4        
                6
      5     8    
            3    
          5      
        7     1  
    5            
  7       8 6    
4         9      
Showing puzzle number: 16341
Puzzletype: Optimal Sudoku
Startnumbers: 14
Difficulty: Very hard (0)
Solution methods: SiSo SC SB FI
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