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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.

2191100 puzzles downloaded.

  7         2 3   8   4
8   2         7        
4 10   3 12           6  
      12 5              
7 2   5     8   4   3  
9         4   11 5      
      10 3   5         8
  5   7   10     11   4 1
              9 6      
  8           5 1   11 12
        2         7   3
11   5   8 12         10  
Showing puzzle number: 1382
Puzzletype: Symmetrical Sudoku
Startnumbers: 50
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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