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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.

595964 puzzles downloaded.

      8     4     11    
            6 7 8 1   3
      3 11         8 6 10
            1 9        
2     4   9            
3   10 1   5           9
12           2   9 3   4
            7   10     11
        9 10            
6 12 9         11 3      
4   3 5 2 6            
    2     12     7      
Showing puzzle number: 228
Puzzletype: Symmetrical Sudoku
Startnumbers: 46
Difficulty: Very easy (0)
Solution methods: SiSo SC
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