Normal sudoku rules apply. Cells separated by a white dot must contain consecutive digits. Cells separated by a black dot contain digits in a 1:2 ratio. Digits in cages cannot repeat and sum to the indicated total. However, one of the digits from 1 to 9 is an imposter. Whenever that digit appears in a cage, it counts as any value from 1 to 9 towards the cage total. This value can be different for each cage that the imposter appears in.