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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.

479135 puzzles downloaded.

    2 4     10 6   3    
    9     12     4      
    5     11 12   2   1  
6           1   10     2
  6                 9  
  7   5       3       8
4       7       5   11  
  10                 3  
11     8   7           3
  5   11   9 4     12    
      1     5     9    
    7   4 5     3 1    
Showing puzzle number: 970
Puzzletype: Symmetrical Sudoku
Startnumbers: 46
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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