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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.

188613 puzzles downloaded.

    8            
                1
                 
4       3       7
                 
8       9       2
                 
2                
            9    
Showing puzzle number: 551
Puzzletype: Symmetrical Sudoku
Startnumbers: 10
Difficulty: Super hard (605)
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