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Online Nurikabe Puzzle (Logical Thinking Brain Game)


Online Nurikabe Puzzle (Logical Thinking Brain Game)
The puzzle is played on a typically rectangular grid of cells, some of which contain numbers. Cells are initially of unknown color, but can only be black or white. Two same-color cells are considered "connected" if they are adjacent vertically or horizontally, but not diagonally. Connected white cells form "walls", while connected black cells form "a stream".
The challenge is to paint each cell black or white, subject to the following rules:
Each numbered cell is a wall cell, the number in it is the number of cells in that wall.
Each wall must contain exactly one numbered cell.
There must be only one stream, which is not allowed to contain "pools", i.e. 2x2 areas of black cells.



Nurikabe Puzzle Tutorial



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