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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.

950116 puzzles downloaded.

  12       8 15       3     1 2
3     1 2     10 14   4   9    
9     11 4 2     13   14 7 15    
      15 7   13   3   11   12    
                1 11   15      
  10   14     4     12 2     5 7
    1     12 14   5       7    
  11   2               13   9  
    13       11   7 10     1    
2 5     3 15     8     11   12  
      4   7 6                
    14   11   1   10   9 8      
    4 7 10   12     5 6 9     15
    2   1   7 6     8 10     13
14 15     13       2 3       7  
Showing puzzle number: 1461
Puzzletype: Symmetrical Sudoku
Startnumbers: 88
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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