Fill the grid with nine non-overlapping 3x3 square regions, such that each region contains the digits 1-9 once each and no digit repeats in any row or column. Correctly entered digits clear the fog around them. Cells outside regions do not contain digits. Cages show the sum of their digits in the left-most cell of the highest row reached by the cage, and digits cannot repeat within a cage. Cells with a shaded square must contain an even digit. Cells with a shaded circle must contain an odd digit.