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Anglers' Cave (987)
Instruction:
Shade some cells to leave behind a single orthogonally-connected group—the cave—with no shaded cells enclosed within the cave. In other words, all shaded cells must be connected edge-wise by other shaded cells to an edge of the grid. All numbered cells must be a part of the cave (and therefore not shaded). Each number indicates the total count of non-shaded cells connected in line vertically and horizontally to the numbered cell including the cell itself.
Each number outside the grid represents an angler, each of whom has caught a different fish on their line. Their line is represented by a path that moves orthogonally from the angler to their fish, and the number represents the length of that line (or, the number of cells that line encounters, including the fish's cell but not the angler). Angler's lines may not overlap or cross each other.
Angler's lines must stay completely within the cave (including the fishes). It is possible for some cells in the cave to not contain an angler's line