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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.

118266 puzzles downloaded.

    2   6      
5 4         1  
    6          
      5 3     2
2     1 4      
          2    
  7         8 4
      4   7    
Showing puzzle number: 34676
Puzzletype: Symmetrical Sudoku
Startnumbers: 18
Difficulty: Harder (0)
Solution methods: SiSo SC SB DS XW
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