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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.

692666 puzzles downloaded.

  6   11 3     10     1  
        9 7       3 11  
2 9     8         6    
5 10         8     2    
        7       10      
10     8     7          
          4     6     7
      4       9        
    1     11         6 12
    5         1     10 8
  4 11       12 8        
  12     1     4 5   9  
Showing puzzle number: 651
Puzzletype: Symmetrical Sudoku
Startnumbers: 44
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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