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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.

752620 puzzles downloaded.

2 15       5   3   4   11      
  8   11   7       13   14   15  
1             15           9 13
  11       2 4     7 13   8    
  6 5         11       1      
13       9 12         5   14   10
9       12   15 5 10   2       3
    3     6   13   1     15    
6       15   8 2 3   10       1
4   1   14         10 15       2
      13       6         7 8  
    15   10 14     2 12       5  
5 14           8             4
  3   12   13       15   2   1  
      15   10   4   11       14 7
Showing puzzle number: 7942
Puzzletype: Symmetrical Sudoku
Startnumbers: 83
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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