Normal sudoku rules apply. Digits in a cage do not repeat and sum to the clue in the top left. Moreover, if cages are adjacent to each other (i.e. share an edge), they must contain at least one common digit.
Normal sudoku rules apply. Digits in a cage do not repeat and sum to the clue in the top left. Moreover, if cages are adjacent to each other (i.e. share an edge), they must contain at least one common digit.