Shade some cells in the grid so that all shaded cells are orthogonally connected. No 2x2 area can be fully shaded. Place some digits from 1 to 9 in unshaded cells such that no repeating digits occur in any row or column. Shaded cells do not contain digits. Groups of orthogonally connected unshaded cells form islands, which do not touch orthogonally, but may touch diagonally. An island of size N must contain the digits 1 to N once each. Cells with arrows contain a digit that indicates the total number of unshaded cells (including itself) in the indicated directions combined. Caged cells contain a digit that indicates the size of the corresponding island. All possible cages are given.