Normal sudoku rules apply. On each main diagonal (marked in blue) digits cannot repeat. In cages, digits must sum to the small clue in the top left corner of the cage (if given). Digits cannot repeat within a cage.
Normal sudoku rules apply. On each main diagonal (marked in blue) digits cannot repeat. In cages, digits must sum to the small clue in the top left corner of the cage (if given). Digits cannot repeat within a cage.