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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.

955063 puzzles downloaded.

2 14 15     8     5         6 11
            7       12 13 5 15  
7 5     6 13   12 11   1 8     4
    12 8 3         9 11 10      
13       11   5 2 3       1    
5   7 1 9   15   4       12    
11   6     7 4       14   3    
        1 3 8   14 13 6        
    3   14       12 6     7   10
    2       9   6   13 14 8   7
    11       14 3 8   10       1
      6 15 10         2 4 11    
3     14 7   10 8   1 15     4 12
  1 10 4 2       15            
6 15         13     4     10 2 8
Showing puzzle number: 5538
Puzzletype: Symmetrical Sudoku
Startnumbers: 98
Difficulty: Super easy (0)
Solution methods: SiSo
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