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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.

761761 puzzles downloaded.

  10       5 11   1           14
            15   6 9     7    
15     5 12     14 7     3 2   6
              3     9 14 13   5
  7     5       2   10 11     8
6     8 14     11     7 1   2  
    5 1     13     7 8 9 15    
  8 11       9   15       14 4  
    4 10 9 1     14     13 5    
  14   15 1     6     3 7     10
9     3 4   14       5     11  
2   10 11 7     5              
10   7 2     4 15     14 5     9
    6     8 3   13            
11           2   5 12       3  
Showing puzzle number: 9462
Puzzletype: Symmetrical Sudoku
Startnumbers: 90
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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