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Sudoku puzzles 4x4 (Su Doku)

My database includes 34183 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every 4x4 box contains the digits 1 through 16. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

7646280 puzzles downloaded.

13         12 2     14     16 9 5  
8           14   11     1       2
10 14 4   15 16   7   9           1
  12           5   6 13         14
9     12     16 3 1       15      
1 7     11 4   10 14       8     16
              14   11 8 16 1 6    
6   16       1   13   5   14      
      9   14   15   10       7   13
    6 2 8 11 10   15              
14     10       4 9   16 6     8 15
      4       1 2 7     9     12
2         7 15   3           14  
4           3   6   11 7   15 16 9
11       14     12   8           7
  5 15 7     9     12 2         11
Showing puzzle number: 14541
Puzzletype: Symmetrical Sudoku
Startnumbers: 102
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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