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Patron Puzzles for Philanthropy

Rules -- Streaming Content

Streaming Content was invented by the Japanese puzzle company Nikoli (under the name Nurikabe). In Japanese folklore, a nurikabe is a spirit that manifests itself as a wall and impedes walking travelers at night.



1. Determine whether each cell is white or black according to the following rules.
2. The black cells must all be connected to each other through their edges. No 2x2 cell area within the grid can contain all black cells.
3. Cells with numbers in them cannot be black.
4. Every cell with a number in it must be part of a polyomino-shaped "island" containing that number of white cells. No two islands may be adjacent horizontally or vertically. Every island must contain exactly one number. Every white cell must be part of exactly one island.

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