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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.

756740 puzzles downloaded.

2     10           4    
5     1         9 2    
  8 4       12 6        
        3       10      
    10 11     1 2     4 12
    3         11   7    
    5   10         8    
6 4     12 1     11 10    
      2       4        
        7 8       9 5  
    6 9         3     10
    12           6     11
Showing puzzle number: 285
Puzzletype: Symmetrical Sudoku
Startnumbers: 44
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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