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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.

649928 puzzles downloaded.

7   13     1 10         11     4
    12 1 6   13   9 11          
4       11 6     14 3 13     12  
  10     2                 11 12
  7 9 3     8     12 2     15  
13 1 8     15         14 10   4  
          5   1   7 3        
  9 14 5   13       10   6 15 8  
        1 9   3   2          
  8   10 13         4     11 2 5
  6     14 8     10     15 9 3  
1 11                 8     13  
  13     4 14 12     6 5       15
          10 3   1   12 4 8    
10     14         11 15     6   3
Showing puzzle number: 772
Puzzletype: Symmetrical Sudoku
Startnumbers: 90
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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