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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.

  3       11   7        
  8     5         11 2  
      12             3  
    10     12 6 8   7   2
    7 8   6           9
2                   12  
  12                   11
4           10   9 3    
7   4   2 5 8     6    
  2             12      
  9 6         5     8  
        12   4       6  
Showing puzzle number: 418
Puzzletype: Symmetrical Sudoku
Startnumbers: 42
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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