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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.

175920 puzzles downloaded.

    7   1      
1   4       7  
      3   8   6
    1          
          1    
2   8   3      
  5       7   1
      4   2    
Showing puzzle number: 23610
Puzzletype: Symmetrical Sudoku
Startnumbers: 18
Difficulty: Easy (0)
Solution methods: SiSo SC SB
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