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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.

619376 puzzles downloaded.

    14   4 6   8 9   7 15   1  
      9 7 15     11   3 5   12 13
11       2   1     5          
    8 6     14           11   12
12     14     11     8 9        
5         2 7     15     4 13 1
6       1       12 11 13     7  
  3   11   9   15   10   2   8  
  15     12 14 5       6       3
3 6 15     11     4 7         8
        11 8     1     6     5
4   12           5     1 13    
          12     13   10       14
14 10   13 3   8     9 15 4      
  2   12 9   4 6   14 1   3    
Showing puzzle number: 8423
Puzzletype: Symmetrical Sudoku
Startnumbers: 93
Difficulty: Super easy (0)
Solution methods: SiSo
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