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Sudoku puzzles (Su Doku)

My database includes 12449 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every 3x5 box contains the digits 1 through 15. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

955063 puzzles downloaded.

            13 12 1       4 15  
    11 14 15 7               1  
  8 7 6   2         9        
  2 12   13 14 9       10 3 11    
  9   4     2       8   5    
  6   5     4     1     9 14  
      3   12 8 13 15   4 14 6 7  
          3       9          
  4 9 11 7   6 1 10 2   13      
  14 13     10     4     9   6  
    3   1       6     8   10  
    4 8 6       2 7 13   14 5  
        10         8   7 15 11  
  11               14 5 10 1    
  3 6       11 2 7            
Showing puzzle number: 3343
Puzzletype: Symmetrical Sudoku
Startnumbers: 88
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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