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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.

300640 puzzles downloaded.

2 13       11   7 15 10   16   14 1 4
7     13 2 14             10 9 3  
13 11 2       3 15   12 8 1   10    
          6 14 11   1 7 15 4 5    
  1   6 15 4           12 8   14 11
1   6     15 13                 14
  10     14   5 12 8   6 13 9 16   7
9 3 4 10     15   14   2   13   12 16
16 6   8   12   3   5     11 4 7 15
12   13 3 16 10   9 7 4   8     6  
8                 6 1     13   2
6 2   9 11           13 5 12   16  
    9 16 10 7 4   3 2 12          
    11   6 9 16   5 7       2 15 12
  4 8 11             3 2 1     5
14 7 15   13   6 16 12   11       9 8
Showing puzzle number: 1429
Puzzletype: Symmetrical Sudoku
Startnumbers: 134
Difficulty: Hard (0)
Solution methods: SiSo SC DC
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