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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.

907368 puzzles downloaded.

2 8 11     12   5       15 3   14
              10   11   9     1
        1 8   13   6 10 11 2 4  
  4 3   8         7   13      
    9       13         8   14 15
5 15       1     4 9   10 7    
4       11 13     12 2     10 8  
3     1               14     11
  2 10     14 11     5 9       7
    1 6   10 14     13       15 2
11 13   7         3       1    
      14   11         4   9 7  
  1 15 13 12 5   6   8 11        
7     5   3   9              
14   4 9       1   15     5 10 8
Showing puzzle number: 2495
Puzzletype: Symmetrical Sudoku
Startnumbers: 92
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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