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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.

890092 puzzles downloaded.

    13     7 10         2 3   5
        12 9 11 3 5           13
3   15               12 11   10  
5       11 2   1 8 7     13 9 3
    7   9 6 15 13 3         5 10
      8   10   5     11        
4   1   8     11     6 5     15
  14 6 5 15           1 3 4 13  
7     10 3     4     8   2   9
        4     2   6   1      
8 12         3 14 4 9 15   6    
6 5 14     1 12 7   10 3       11
  10   11 14               12   2
2           1 9 12 4 7        
12   8 15         10 13     14    
Showing puzzle number: 452
Puzzletype: Symmetrical Sudoku
Startnumbers: 98
Difficulty: Super easy (0)
Solution methods: SiSo
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