Definition of "nurikabe" [nurikabe]

• A Japanese logic puzzle with a rectangular grid of squares, some of them numbered; the solver is challenged to fill in a subset of squares (under certain constraints) such that each numbered square finally indicates the number of unfilled squares contiguous to it. (noun)

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• "Elsewhere, the Whomp characters from Super Mario 64 were inspired by a mythological being known as the nurikabe, a 'wall ghost' that misdirects or impedes travellers at night."