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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.

      11 10 14   6     3     8 15
12       13           10 14      
    7       5 13 15     4      
    2 7 11 10     5         13  
13   10     6 9 11 7   8 2      
  9 8   6 12 13 4     1     11  
6 11         10           3    
9       1           14       8
    12           3         10 13
  7     12     10 13 5 9   15 6  
      1 4   8 9 12 6     14   11
  14         15     4 12 13 7    
      14     7 15 8       5    
      6 3           13       14
1 8     5     14   12 15 3      
Showing puzzle number: 3354
Puzzletype: Symmetrical Sudoku
Startnumbers: 88
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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