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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.

2333808 puzzles downloaded.

9         7       12 5  
    5 7   3 9       2 1
2     8 1              
7     6 5       4      
1   9 10   11     2 3    
    11     8   2     6 5
8 11     3   10     6    
    10 4     2   11 7   3
      3       5 10     12
              3 8     4
11 7       5 4   12 1    
  10 8       12         11
Showing puzzle number: 8369
Puzzletype: Symmetrical Sudoku
Startnumbers: 56
Difficulty: Very easy (0)
Solution methods: SiSo SC
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