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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.

945729 puzzles downloaded.

    12 13   7   8 4 9   1      
14           12 3 2       6    
5   8         1   6   15      
12 1   3 13 15     11 2 8        
7     9     14   12   2   15    
11   2 15 6       7   13       10
  2   8       11 10       9    
9 13         8   15         2 14
    10       3 2       8   7  
8       4   7       5 14 10   3
    15   14   5   8     7     1
        5 2 9     3 4 13   11 8
      1   8   5         14   4
    6       2 14 1           5
      14   13 10 12   7   3 11    
Showing puzzle number: 5384
Puzzletype: Symmetrical Sudoku
Startnumbers: 92
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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