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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.

610409 puzzles downloaded.

14       4   8     11     9 5  
6 7   5   10   9       13 2    
  13       7   14   4          
  5 4     11 15           6    
  8   6         14   13   12 3 4
1 12   7   13 3       11     9  
                12   14 11      
  11   12               7   8  
      9 13   10                
  15     14       1 10   2   12 11
10 6 11   9   12         5   1  
    8           3 15     4 6  
          4   5   3       14  
    1 3       10   7   15   4 5
  4 5     14     8   2       10
Showing puzzle number: 10671
Puzzletype: Symmetrical Sudoku
Startnumbers: 82
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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