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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.

955063 puzzles downloaded.

4                 14     15    
    15 11     12 4   6 14 5   8  
3           15 9 11 5       4  
5   1       14 11           9 10
11     13 7 4         2        
  4 10   9 7 3 5     6   14    
  3 5           9           8
13 6 8 7 12           1 10 9 15 11
15           13           3 6  
    3   2     15 6 7 9   10 11  
        5         4 13 2     3
8 10           1 3       7   5
  7       1 5 8 14           2
  14   10 8 12   7 15     9 13    
    12     6                 15
Showing puzzle number: 7098
Puzzletype: Symmetrical Sudoku
Startnumbers: 90
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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