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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.

            8 3 7     11
  11     1         3   5
  2       10         8  
  3 8     6           9
    11 1   4 7   3      
7 12 2     9       6 5  
  9 6       12     11 1 4
      4   3 9   6 8    
8           6     2 3  
  10         2       11  
2   3         12     4  
12     9 7 1            
Showing puzzle number: 10198
Puzzletype: Symmetrical Sudoku
Startnumbers: 52
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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