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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.

955063 puzzles downloaded.

  4   12       15 7 13     6 11  
    1 5     6   2     7      
13 6   8     3     9   12 10   5
9 10 5             4   14     8
    2   8     3   7   9 13   1
14       7     5 13         10  
    14   4     9       6      
10 13       6   12   8       7 11
      6       13     3   8    
  2         12 4     14       13
8   15 10   2   1     5   12    
1     14   9             2 6 10
15   13 4   3     6     10   12 7
      1     7   9     15 5    
  14 9     10 15 11       13   3  
Showing puzzle number: 9466
Puzzletype: Symmetrical Sudoku
Startnumbers: 91
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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