Normal sudoku rules apply. Cages sum to the total given in the cage corner. The highest digit in each cage is inverted (i.e. 9 counts as -9, 8 as -8 etc). Digits cannot repeat within a cage.
Normal sudoku rules apply. Cages sum to the total given in the cage corner. The highest digit in each cage is inverted (i.e. 9 counts as -9, 8 as -8 etc). Digits cannot repeat within a cage.