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Sudoku puzzles disjoint groups (Su Doku)

My database includes 41726 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. The cells with the same color must also contain the digits 1 through 8. There is only 1 solution for each puzzle.

For more information check out Wikipedia.

206672 puzzles downloaded.

6         2 1  
        4      
        2      
  5 4   7 3    
    8 7   4 6  
      3        
      6        
  8 1         4
Showing puzzle number: 32057
Puzzletype: Symmetrical Sudoku
Startnumbers: 18
Difficulty: Super easy (0)
Solution methods: SiSo
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