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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.

884386 puzzles downloaded.

    2   6     12     7 1      
      4 15   11   2 1     9   5
        9   5     14 8     3  
14     5   6 7 2 10   15     8  
  6   7   15   13     12        
3       2   4     5   14      
            12 6     2 13   9 8
10 9   13     14   3     15   7 12
2 12   3 5     15 8            
      9   2     1   13       6
        3     4   6   7   1  
  4     1   8 7 12 9   11     10
  1     13 10     5   14        
15   3     1 6   11   10 9      
      2 4     3     1   11    
Showing puzzle number: 7634
Puzzletype: Symmetrical Sudoku
Startnumbers: 90
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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