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Sudoku puzzles (Su Doku)

My database includes 242 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 16. 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.

145995 puzzles downloaded.

                8             1
      1         16   11          
      2     7     12     8      
        2 11         9     6   12
  13     1         14       4   9
    6                   3   14  
      3         2 11   12        
        14     13     3       11 10
16 5       15     3     2        
        6   5 1         12      
  7   6                   3    
13   14       2         11     16  
9   16     10         15 5        
      13     16     1     6      
          6   4         15      
4             14                
Showing puzzle number: 121
Puzzletype: Symmetrical Sudoku
Startnumbers: 62
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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