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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.

870202 puzzles downloaded.

    11 14 13   7   10   5 8      
  6           8 3 4   13 1   7
5         9         2 4   15 10
12       14 7       10   1   8 9
  8         2   13 14 4   10    
    13     4   1           2  
      9 4 11                 14
10   15 3 7           11 2 5   13
11                 2 15 3      
  10           14   12     11    
    7   15 6 4   11         13  
9 11   1   3       15 12       6
7 5   6 2         9         11
3   14 15   13 6 10           4  
      13 9   11   8   3 6 12    
Showing puzzle number: 9493
Puzzletype: Symmetrical Sudoku
Startnumbers: 90
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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