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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.

853225 puzzles downloaded.

1   7     8    
  5           6
6 4         1  
  2 3          
          7 5  
  7         4 2
2           6  
    5     2   3
Showing puzzle number: 139660
Puzzletype: Symmetrical Sudoku
Startnumbers: 20
Difficulty: Medium (0)
Solution methods: SiSo SC SB DS
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