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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.

1569459 puzzles downloaded.

  4   9   10     12     8
      2 5   4 3   1    
6   5         12   7   10
4 7 3   9   11   5      
5       4       7      
  11 9 12                
                3 10 9  
      6       4       11
      5   1   7   6 2 4
12   2   10         3   5
    7   11 4   5 2      
9     11     6   10   4  
Showing puzzle number: 4089
Puzzletype: Symmetrical Sudoku
Startnumbers: 54
Difficulty: Very easy (0)
Solution methods: SiSo SC
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