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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.

12 10         3   6 11    
3       6 11           10
6   8       9       5  
            2     3 1  
4 2     11     3 5 6    
    7     9   6 11 12    
    2 12 8   11     10    
    9 3 1     10     2 4
  5 6     3            
  11       4       2   7
2           8 9       11
    4 7   6         12 5
Showing puzzle number: 604
Puzzletype: Symmetrical Sudoku
Startnumbers: 54
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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