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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.

1665577 puzzles downloaded.

        7       8 2   9
4       10   2          
  8     11 6     12 1 4  
1           11 8   10 5 3
10                 11    
      9   10   7     6 4
8 7     6   12   3      
    1                 5
12 3 6   4 7           8
  4 12 8     6 9     10  
          4   10       7
11   9 1       12        
Showing puzzle number: 10230
Puzzletype: Symmetrical Sudoku
Startnumbers: 52
Difficulty: Very easy (0)
Solution methods: SiSo SC
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