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Sudoku puzzles (Su Doku)

My database includes 10934 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every 3x4 box contains the digits 1 through 12. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

1821378 puzzles downloaded.

        10     12        
9       5   6 8 2      
  10 7 8     1     11    
7   4 5   3 10          
2       7       9      
12     9           5 1  
  3 5           8     4
      6       11       12
          12 5   10 2   1
    10     4     1 6 2  
      11 9 10   3       5
        11     6        
Showing puzzle number: 644
Puzzletype: Symmetrical Sudoku
Startnumbers: 48
Difficulty: Very easy (0)
Solution methods: SiSo SC
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