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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.

      13   3     4   10       9
    11   12 15 14     1          
3   10 1 14   8 6     11     5  
13 7 6     11 10     5 2   15    
5 12           1       8 13 7 10
10   15             14     4   11
        5 8           6   12  
14           1   3           5
  8   15           6 3        
12   5     9             1   13
6 4 14 10       11           2 7
    1   3 14     5 4     9 11 8
  2     1     4 8   7 13 6   3
          7     9 12 15   11    
15       13   6     2   5      
Showing puzzle number: 7740
Puzzletype: Symmetrical Sudoku
Startnumbers: 88
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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