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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.

939617 puzzles downloaded.

9     6 15 7 2   11   12     4  
4         5     15       1 8  
    14   8 4     13       7 9  
11   12             7   15 9   14
10   7     9 13   8     12     4
2   9         11   10 13        
14           4   3 11       5 2
8     2       9       4     12
12 10       1 5   14           8
        10 2   14         12   6
13     14     8   5 15     10   9
7   8 1   13             5   3
  9 13       11     12 5   14    
  1 2       15     9         11
  11     12   10   1 4 3 9     15
Showing puzzle number: 12376
Puzzletype: Symmetrical Sudoku
Startnumbers: 91
Difficulty: Very easy (0)
Solution methods: SiSo SC
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