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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.

              11 3      
      10 4     1 5   2  
3           2 8     12 6
          1 12     5    
  4 7     5       3    
  5 9 1         12 7 8 2
6 7 10 2         4 8 1  
    4       3     2 7  
    8     2 4          
7 6     3 9           11
  8   9 12     10 7      
      3 2              
Showing puzzle number: 5978
Puzzletype: Symmetrical Sudoku
Startnumbers: 52
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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