Normal sudoku rules apply. Draw cages such that every cell in the grid is in a cage. Cages must be entirely shaded if they are rectangular in shape, (a square counts as a rectangle) and they must be entirely unshaded if they are not shaped like a rectangle. No two shaded cages can touch orthogonally and no two unshaded cages can touch orthogonally. Digits in cages cannot repeat. Numbers given as clues in the grid represent the sum of the cells in the cage containing that clue - not all totals have been given.