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Sudoku puzzles (Su Doku)

My database includes 2967 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row and every column contains the digits 1 through 16. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

376304 puzzles downloaded.

  16   1 5 3   4   11 15 13   12    
7     2   6 5 13   14       15 16 12
4     3 15   16 11 9 6         12  
      7 4   15 5     8       11 13
  5 8       1   11   4   13   7  
11 15 5 4     3 7 10 2   12   9   1
    3 11   8     16   1     4   10
9 6     16   11 10 12   5 2 8      
      8 3 9   14 6 12   16     13 15
2   11     1   6     13   15 16    
16   2   14   10 12 13 15     4 1 3 6
  14   13   4   1   3       7 2  
12 9       14     1 4   10 3      
  8         14 16 4 10   11 12     7
14 11 10       2   7 13 6   16     4
    16   7 13 9   8   3 14 2   10  
Showing puzzle number: 381
Puzzletype: Symmetrical Sudoku
Startnumbers: 134
Difficulty: Harder (0)
Solution methods: SiSo SC DC XW
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