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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.

945420 puzzles downloaded.

2   7     13   6       11 10   1
  5 15     11         8     13  
  14     13 9   5 1     7 12    
      6         13     8   10 15
  1       6 11         12     5
5   13   3 1 8 10     11     6 14
6 9 10 15 12       7            
        14 12       5 1        
            13       6 10 14 12 9
9 3     15     8 14 1 7   13   12
14     2         15 13       1  
1 10   13     4         14      
    3 7     5 13   12 4     14  
  2     6         10     5 8  
8   11 14       1   3     7   10
Showing puzzle number: 9394
Puzzletype: Symmetrical Sudoku
Startnumbers: 92
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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