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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.

1273003 puzzles downloaded.

12     1 2     10     9  
      11     3     10    
7   9       12          
11 5   10 7           3  
        11   4   7 8   12
3 4           8 2      
      6 8           1 3
5   2 7   1   3        
  3           12 5   7 4
          4       5   9
    1     8     4      
  8     3     1 11     7
Showing puzzle number: 2648
Puzzletype: Symmetrical Sudoku
Startnumbers: 50
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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