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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.

945397 puzzles downloaded.

    2   15   10         3 1   4
8     7     14     13   5      
5     13 4 1 3   2 11          
  13 7     8           2 6    
2   15     7 13   1   4       12
    9 4   2     3       5 14  
7 3       10 5 15   12 13   14    
      5     11   6     10      
    6   10 14   8 13 9       11 15
  11 4       6     10   12 9    
3       14   12   7 5     15   2
    12 6           15     10 1  
          12 8   14 3 1 6     10
      12   11     10     4     8
13   3 10         9   12   2    
Showing puzzle number: 3021
Puzzletype: Symmetrical Sudoku
Startnumbers: 92
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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