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GCROWNSPA

Solo · FREE PLAY

Nurikabe

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Logic & numbers
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Game guide · GCROWNSPA

Find your footing in Nurikabe

Make Nurikabe your next activity in the game library. Create one connected sea around numbered islands of exactly the stated size, without a 2×2 sea block. Use the example below to understand a decision. Read the objective before making your first input. Keep the game area visible while you use its controls.

Play ten compact 5×5 puzzles. Some boards begin with fixed shaded sea cells.

Try a more deliberate round

Compare the worked example with your own position. Use the reasoning, not an answer copied from a different board. Notice the feedback after each input.

The challenge in front of you

Create one connected sea around numbered islands of exactly the stated size, without a 2×2 sea block. Use the instructions to see which actions move you towards it. The example below illustrates a decision.

Making your moves

  1. Shade sea squares and leave islands white.
  2. Every island contains exactly one clue.
  3. Different islands cannot meet along an edge.
  4. Check puzzle verifies sizes, connectivity and forbidden sea blocks.

Controls

Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution. A careful first action helps you become familiar with the layout. Avoid pressing the same control repeatedly while a move is being processed.

An example to follow

An island labelled 1 is already complete, so its edge neighbours must be sea. Focus on why the action is allowed, not only its outcome. Check the stated objective.

Keep this in mind

Two numbered islands may not merge into one. Read the feedback to see why an action did not have the expected result. Before your first action, say what you are trying to achieve. Then compare the result with the goal.

Helpful answers for players

For my first round, what is the goal of Nurikabe?

The key detail is this: Create one connected sea around numbered islands of exactly the stated size, without a 2×2 sea block.

On this playing page, how do I control Nurikabe?

Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.

For this browser game, what example helps explain Nurikabe?

Keep this in mind: An island labelled 1 is already complete, so its edge neighbours must be sea.

When I return, what should I watch out for in Nurikabe?

Here is the relevant explanation: Two numbered islands may not merge into one.

As a new player, what format does Nurikabe offer?

For clarity: Play ten compact 5×5 puzzles. Some boards begin with fixed shaded sea cells.

When I return, which play mode does Nurikabe use?

Here is the relevant explanation: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.

For my first round, where should I start with Nurikabe?

For clarity: Shade sea squares and leave islands white.

Do I need an account or a payment for Nurikabe?

For clarity: No player account or payment is needed. Game scores are recreational results, not cash prizes.

As a new player, how can I find Nurikabe again?

For clarity: Use the Games list or save this game page in your browser bookmarks. The Guide is linked from the playing page.

Before I begin, how do I report an issue with Nurikabe?

Keep this in mind: Use the contact form and include the game name, browser, device and the actions that led to the issue. Do not send passwords or payment details.

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