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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.

  11               4 12 2   13 6 1
                  13 5     10 15 4
14                 15   1        
  8 12 13   1 3   11 6       9    
  15             16 11     4      
4   1   8     15 5       2 11    
        9   1       2 4   6    
          10 5 4 12   9   16 3   8
6   9 1   3   5 10 12 4          
    14   11 8       2   3        
    3 5       14 8     11   2   10
      8     12 10             16  
    4       8 12   10 1   7 5 3  
        5   4                 15
5 7 8     9 10                  
2 16 13   1 11 15               14  
Showing puzzle number: 1160
Puzzletype: Symmetrical Sudoku
Startnumbers: 94
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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