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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.

887775 puzzles downloaded.

  10   5     6 8   11     4 14 13
      4 8       5   2   3    
6         13 7 4 1            
2 5     1 4   13   8         12
  4 13 3   5 14   15            
10 15   14   7         8 5   13  
    8   7   13 3             1
3 14 1                   7 5 6
5             1 12   11   13    
  7   10 4         13   3   1 14
            15   7 1   4 6 11  
11         12   5   14 10     9 15
            8 10 13 3         2
    10   11   2       5 13      
7 2 14     1   12 11     6   10  
Showing puzzle number: 7272
Puzzletype: Symmetrical Sudoku
Startnumbers: 92
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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