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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.

511389 puzzles downloaded.

      6   7 4 3 1 2    
                       
2       10   11     6 4 12
7             2 10 8    
4   11   3   6       8  
        8         11    
    10         7        
  8       10   1   4   3
    8 5 12             9
5 10 6     4   12       8
                       
    12 8 9 11 2   3      
Showing puzzle number: 314
Puzzletype: Symmetrical Sudoku
Startnumbers: 46
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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