Normal sudoku rules apply. In a cage, digits cannot repeat and sum to the total shown. Two orthogonally adjacent digits sum to 10 if there is an X between them, and sum to a value other than 3, 10, 12, or 17 if there is no X between them.
Normal sudoku rules apply. In a cage, digits cannot repeat and sum to the total shown. Two orthogonally adjacent digits sum to 10 if there is an X between them, and sum to a value other than 3, 10, 12, or 17 if there is no X between them.