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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.

817074 puzzles downloaded.

        8 6    
    2       5  
  4   8 5      
      1     7 8
5 3     1      
      2 7   3  
  7       2    
    5 3        
Showing puzzle number: 166726
Puzzletype: Symmetrical Sudoku
Startnumbers: 20
Difficulty: Very easy (0)
Solution methods: SiSo SC
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