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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.

713536 puzzles downloaded.

  9           3 2      
6         11     7     12
3     4   1 9 8        
2   1                  
  12       8     11      
  6   1 2   10       3  
  7       6   1 3   9  
      5     8       12  
                  1   10
        4 7 12   1     6
10     2     6         8
      7 10           4  
Showing puzzle number: 993
Puzzletype: Symmetrical Sudoku
Startnumbers: 44
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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