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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.

869544 puzzles downloaded.

  4   9     13 12     5     15 10
  10   3   2 9       13   8   11
  2           11 15     1     14
13   9     10 12           11    
5     7   14   3           8 12
10 12 11   3 4               14 5
    1       14   11 10 2        
14   5 8   12 3   6 13   11 7   15
        10 9 15   5       6    
7 5               6 9   3 13 4
6 8           15   12   10     2
    10           1 14     5   6
1     13     5 10           9  
9   2   12       8 4   5   3  
4 7     5     13 2     8   6  
Showing puzzle number: 1672
Puzzletype: Symmetrical Sudoku
Startnumbers: 94
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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