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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.

596847 puzzles downloaded.

  3   2 7 10         13        
  13   12   5 8 3       2 11    
8 1     11 13 14   6         4  
6           4 2 13       15    
  12         11   3 14 7   2 8  
1       4   10     12          
12 4 5     8     2       10    
14 7     10           2     13 1
    1       3     11     4 7 12
          2     9   14       11
  6 13   2 7 15   4         3  
    8       1 12 11           7
  2         13   15 3 11     5 9
    15 13       1 12 5   8   10  
        8         9 12 3   15  
Showing puzzle number: 7950
Puzzletype: Symmetrical Sudoku
Startnumbers: 88
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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