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Sudoku puzzles (Su Doku)

My database includes 300320 puzzles for the moment and I'm constantly generating more.

Rules: Fill in the grid so that every row, every column, and every 2x4 box contains the digits 1 through 8. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

830405 puzzles downloaded.

    7     8   3
      1     2  
  1 6         7
        4   3  
  6   4        
3         7 1  
  5     3      
6   8     4    
Showing puzzle number: 202474
Puzzletype: Symmetrical Sudoku
Startnumbers: 20
Difficulty: Very easy (0)
Solution methods: SiSo SC
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