Reference

Nurikabe rules

import { … } from "@johnmorrisdotca/kazu/nurikabe";

2.2 kB minified and gzipped, with everything it imports (measured with esbuild)

Exports

Name	Kind	What it is
`checkNurikabe`	function	Checks island areas and separation, the connected sea, and the ban on 2×2 sea blocks.
`decodeNurikabe`	function	Read a native saved Nurikabe game, or null for invalid board data or progress.
`encodeNurikabe`	function	Encode the Nurikabe board and current game as native resumable text.
`generateNurikabe`	function	Seeded symmetries of original 5×5 layouts are returned only after the solver proves uniqueness.
`hintNurikabe`	function	Find a native Nurikabe hint, or null when no actionable hint is available.
`isNurikabeBoard`	function	Whether the value has valid native Nurikabe dimensions, clues and data.
`markNurikabeSea`	function	Apply the requested native Nurikabe entry or mark to a new immutable game; invalid or fixed targets stay unchanged.
`newNurikabe`	function	Create the initial immutable Nurikabe game from a valid board.
`NURIKABE_MAX_NODES`	constant	The native Nurikabe search-node budget.
`NURIKABE_SIZES`	constant	The supported Nurikabe board sizes.
`NurikabeBoard`	type	Nurikabe dimensions and printed clues in their native row-major representation.
`NurikabeGame`	type	The immutable Nurikabe board, current entries or marks, undo history and assistance state.
`nurikabeNeighbors`	function	Read orthogonally adjacent cells on a square Nurikabe board.
`NurikabePuzzle`	type	A seeded Nurikabe board with its verified solution.
`NurikabeSolve`	type	A bounded Nurikabe solve result: answer count, first solution, node work and whether the search completed.
`restartNurikabe`	function	Return the Nurikabe game reset to its initial entries or marks.
`solveNurikabe`	function	Counts valid island placements and checks the remaining cells as the sea under a finite budget.
`undoNurikabe`	function	Return the Nurikabe game with its previous marks or entries restored, or unchanged when there is no undo history.

View source Edit on GitHubMade from the source of @johnmorrisdotca/kazu 2.1.0.