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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.

283995 puzzles downloaded.

5           9    
  6              
                 
    7     3 2    
4               7
    6 1     5    
                 
              9  
    8           5
Showing puzzle number: 712
Puzzletype: Symmetrical Sudoku
Startnumbers: 14
Difficulty: Very hard (0)
Solution methods: SiSo SC SB SF FI
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