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Sudoku puzzles irregular (Su Doku)

My database includes 1031 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every box contains the digits 1 through 12. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

756740 puzzles downloaded.

8 9                 7  
  6       12   9     1  
  3 10   2     6 8      
    9 8     3   4      
        6              
10 8       1       12    
    11       9       10 5
              8        
      5   3     11 4    
      9 3     4   1 8  
  5     8   1       11  
  2                 12 6
Showing puzzle number: 497
Puzzletype: Symmetrical Sudoku
Startnumbers: 42
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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