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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.

271785 puzzles downloaded.

                 
          1     6
                 
                 
8     3 5 4     7
                 
                 
9     1          
                 
Showing puzzle number: 218
Puzzletype: Symmetrical Sudoku
Startnumbers: 9
Difficulty: Very hard (0)
Solution methods: SiSo SC SB NS FI
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