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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.

225001 puzzles downloaded.

        6     1  
                 
                 
1       7   9    
  2           3  
    8   5       6
                 
                 
  5     2        
Showing puzzle number: 471
Puzzletype: Symmetrical Sudoku
Startnumbers: 12
Difficulty: Very hard (0)
Solution methods: SiSo SC SB DS XW NS
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