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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.

907543 puzzles downloaded.

  10   1       14       8 3    
5   2     13 12         15   11  
13 7     11 5   3              
4           9   12   10 11 1 14 15
6     7   4 3   10   12     9  
          8       2   3     5
9   1                   15 6 2
  6   5     10 7 9     1   3  
3 15 14                   5   13
10     9   11       7          
  1     13   6   14 8   12     9
11 8 12 6 14   13   3           4
              5   12 3     10 14
  14   4         13 10     2   11
    3 10       11       6   5  
Showing puzzle number: 939
Puzzletype: Symmetrical Sudoku
Startnumbers: 87
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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