Normal sudoku rules apply. Shade some cells in the grid such that all shaded cells are orthogonally connected and all unshaded cells are orthogonally connected. No 2x2 box may be fully shaded or fully unshaded. Digits in a cage cannot repeat and must sum to the small clue in the top left corner of the cage. In cages, all shaded cells must contain even digits, and all unshaded cells must contain odd digits.