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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.

813855 puzzles downloaded.

3       7   8  
      2        
  1 8 4     5 3
            7  
  6            
2 3     4 6 1  
        5      
  7   8       1
Showing puzzle number: 231954
Puzzletype: Symmetrical Sudoku
Startnumbers: 20
Difficulty: Very easy (0)
Solution methods: SiSo SC
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