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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.

  10   4   6 12 7 5      
        5     10     4 9
7 1       4 9 2       11
    1 11   2     7      
6   2         12        
  9 4 3               1
1               10 5 7  
        8         2   6
      7     5   1 4    
3       2 9 10       11 5
2 6     1     8        
      1 12 5 6   2   8  
Showing puzzle number: 4657
Puzzletype: Symmetrical Sudoku
Startnumbers: 54
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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