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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.

903588 puzzles downloaded.

      1 2       9       8 4 3
    8 5 4 12         10     9  
10     11       8 4 13     7    
7     3 11 10     8 6 15       14
        15   7   11   1   6    
8 1         5 15 3           13
  11 5     6     15     13   10 2
      7       13       5      
9 3   6     12     5     15 7  
13           2 6 12         15 10
    3   7   8   13   2        
1       8 14 15     7 4 9     5
    9     8 6 1       4     15
  15     3         9 6 1 2    
6 5 1       13       9 11      
Showing puzzle number: 8735
Puzzletype: Symmetrical Sudoku
Startnumbers: 91
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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