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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.

210592 puzzles downloaded.

3 6       7 4  
    7     5    
        7      
          4 8  
  1 2          
      7        
    1     3    
  8 4       2 5
Showing puzzle number: 34815
Puzzletype: Symmetrical Sudoku
Startnumbers: 18
Difficulty: Medium (0)
Solution methods: SiSo SC SB DS
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