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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.

182453 puzzles downloaded.

6                
          8     7
9                
    1       4    
                 
    8       3    
                8
8     2          
                3
Showing puzzle number: 311
Puzzletype: Symmetrical Sudoku
Startnumbers: 12
Difficulty: Very hard (0)
Solution methods: SiSo SC SB DS XW NS
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