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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.

941815 puzzles downloaded.

      5 2   7     8         11
  6 3 8       11           7  
        4       2       8 6 9
14               15 4     6 1 10
12 4         8 9   1       5 13
  5 9   15 3     10   8     14  
  8 12         2 9 15   10 5    
      6   8       11   15      
    11 15   14 6 10         3 2  
  1     6   10     2 9   7 8  
13 9       15   6 5         10 2
5 15 10     9 4               3
4 12 13       14       7        
  3           5       1 13 4  
1         4     3   15 14      
Showing puzzle number: 1309
Puzzletype: Symmetrical Sudoku
Startnumbers: 88
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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