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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.

812916 puzzles downloaded.

3   14     2   9   10       12 15
2           1     3 10   13   14
10   7   1               8    
15       3   13   11 8   1 12 10  
    10   14     3 6     15     2
    5 9 8         15 7       3
14       10 6   12   11 15        
  11   5   7       9   13   8  
        4 10   2   5 3       12
1       11 5         9 14 2    
9     7     11 14     12   1    
  14 12 8   1 2   9   11       4
    11               6   4   10
13   1   15 4     10           9
5 2       8   7   14     11   1
Showing puzzle number: 4300
Puzzletype: Symmetrical Sudoku
Startnumbers: 92
Difficulty: Super easy (0)
Solution methods: SiSo
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