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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.

952636 puzzles downloaded.

      6 9 14     12         13 15
15     13   1     10 11 3 9 12    
2               15 13     6 7  
    11 1           12     5 6  
  13         14   5       8    
      12 5     3   15       11  
12 2   3           4 10   9 8  
  4   14 10     2     6 7   15  
  9 8   7 13           2   4 12
  6       3   13     5 11      
    10       5   11         3  
  5 12     8           13 1    
  14 2     10 3               9
    3 10 1 15 4     9   14     11
4 12         1     8 13 3      
Showing puzzle number: 7797
Puzzletype: Symmetrical Sudoku
Startnumbers: 87
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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