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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.

752617 puzzles downloaded.

      14 9       7 5     11 3  
12     2   14   1     13       7
11 5   4   8 13     2          
5 2             11     3 6   1
  11 4 10       14     7   15    
9 7       6 2   5     8     14
  8 15       4 13 14     6 5 7 9
              6              
6 4 9 1     8 15 2       13 14  
1     5     15   4 7       12 13
    11   8     5       15 14 2  
3   13 12     1             4 5
          2     3 8   13   15 11
15       2     4   12   14     10
  13 5     15 14       2 12      
Showing puzzle number: 8302
Puzzletype: Symmetrical Sudoku
Startnumbers: 93
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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