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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.

2311284 puzzles downloaded.

      6       4     5 10
8   12   11 7   10        
  5 3         9        
4   2 7     1 5     8 11
9   8       12   1 5   2
                4      
      8                
12   6 2   9       11   5
11 1     12 10     8 9   4
        2         12 3  
        10   9 7   1   6
5 10     6       7      
Showing puzzle number: 3119
Puzzletype: Symmetrical Sudoku
Startnumbers: 52
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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