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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.

1082526 puzzles downloaded.

7   12       10       4       1  
    14         9 1 6         8 7
      6       4 12       2   14  
15 4       11   14 13 5            
13 1     10 4           12 7 14    
    3           5 11         2  
2   5   3 9         6       4 16
  7     12     15     1 3 9     10
6     12 15 14     11     16     13  
14 15       8         12 5   2   1
  16         11 3           12    
    11 10 9           13 1     5 3
            1 6 3   11       9 2
  14   11       13 8       6      
5 6         3 2 9         15    
  3       12       1       13   14
Showing puzzle number: 1199
Puzzletype: Symmetrical Sudoku
Startnumbers: 94
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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