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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.

870849 puzzles downloaded.

8 10 12 1   2   9   7         15
              4   10          
15 4     7 12 14     5   2 10    
  12 5   8   9 7 13     3      
        1   3     4 11 7      
  11     3 8     2 1     12   4
    8 2 6         11 1        
12 9 4   13           3   15 14 11
        15 5         10 4 2    
9   15     1 8     14 4     13  
      14 10 4     9   5        
      8     6 10 11   14   7 3  
    9 10   14     7 12 13     15 5
          9   13              
1         10   11   2   14 6 9 8
Showing puzzle number: 2596
Puzzletype: Symmetrical Sudoku
Startnumbers: 92
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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