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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.

399590 puzzles downloaded.

12     5 2 10 8     4 11 7 9     16
7         13   8   6   4   2   5
15   8 10     16   3 11       6 9 12
11   4 9       3 6   10       2 1
  15 16   9   6   5 1   3 14   13  
  5 1 13   7   11 14 15       3    
8 11   3     15   9 5   14     10  
    5 6   3   15   10 8 9 2 12    
    13 1 12 9 11   10   14   8 16    
  2     13   7 16   9     4   8 15
    10       13 7 4   5   6 1 15  
  12   14 7   9 5   3   11   8 4  
10 9       6   4 12       13 5   8
5 1 11       10 9   2     12 7   6
1   14   4   2   8   3         13
14     15 5 4 1     8 12 6 10     9
Showing puzzle number: 843
Puzzletype: Symmetrical Sudoku
Startnumbers: 136
Difficulty: Harder (0)
Solution methods: SiSo SC DC XW
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