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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.

1948855 puzzles downloaded.

  7 9   5           10 1
  4       10       3    
  12           3     6 4
  6       8   10 7   11  
    4 5       9 2   8  
8         7 6     12    
    8     5 11         12
  2   4 10       9 8    
  1   12 9   7       4  
6 5     3           9  
    10       5       2  
1 3           11   7 5  
Showing puzzle number: 9902
Puzzletype: Symmetrical Sudoku
Startnumbers: 52
Difficulty: Hard (0)
Solution methods: SiSo SC SB DC
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