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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.

      8     4 15 7 10   12   1 3
  12         3 1     8 7   11  
15     2     11   12   10       6
  3           4 5 8       14  
  14     5     9   11 12     13  
8 6   11 15             4 9   7
            10 12     6 14   8 4
13       6           1       2
10 15   4 8     6 2            
7   4 3             5 6   2 10
  2     1 3   11     13     12  
  10       9 1 2           3  
5       13   8   15     1     12
  8   14 10     5 11         4  
9 11   1   4 2 14 13     8      
Showing puzzle number: 6595
Puzzletype: Symmetrical Sudoku
Startnumbers: 92
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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