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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.

893575 puzzles downloaded.

13     1 7 9   2       15     4
14     9     7       6 11 12    
  3       13     4   2   9    
4 8     6     3 5 14 10   13 1  
5 13       7 6 4     11 9     14
    11   9       12 2       5  
  9     3     8 13 15          
12                           2
          2 11 10     4     7  
  10       4 1       14   2    
7     6 1     14 3 5       4 11
  14 3   4 12 10 6     15     13 1
    12   15   8     4       2  
    13 4 8       1     14     12
6     2       12   13 8 10     5
Showing puzzle number: 3565
Puzzletype: Symmetrical Sudoku
Startnumbers: 92
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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