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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.

1093687 puzzles downloaded.

  5     12                      
11       10 1 6 13         4 9    
    10       4                  
  14   4 15     2   3   8 5 12   16
      3 2     6 12     1     10  
  13 5 10       16   4 3         8
      1     11 5     7     14 9 2
15   11   7 3     9     10 1 13   4
12   16 14 11     10     15 2   7   3
10 4 15     2     16 6     11      
3         12 16   11       9 1 2  
  1     4     7 3     13 15      
14   4 8 13   10   6     5 7   15  
                  16       8    
    9 13         8 15 1 12       5
                      11     1  
Showing puzzle number: 2175
Puzzletype: Symmetrical Sudoku
Startnumbers: 98
Difficulty: Super easy (0)
Solution methods: SiSo
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