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Sudoku puzzles diagonals (Su Doku)

My database includes 5816 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. The diagonals must also contain 1 through 16. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

1153565 puzzles downloaded.

16     6 8     1 14     11   7 5  
              14   2 6     13   15
11 5   13     10 15       16     2  
    15     5       9 1          
  9     12 8   16 4 7         10  
  11       6                    
  6   12 4 11     1         16 9 13
7   2 16 5         12   10 4      
      10 15   11         12 8 4   3
3 8 1         2     16 14 6   13  
                    10       14  
  14         6 8 2   9 4     11  
          15 8       13     2    
  16     3       12 10     13   15 6
1   8     2 13   16              
  2 4   7     11 3     6 5     9
Showing puzzle number: 4287
Puzzletype: Symmetrical Sudoku
Startnumbers: 96
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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