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4008007786

Solo · FREE PLAY

Nurikabe

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Logic & numbers
Choose your controls and enjoy a free round.
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Game guide · 4008007786

Nurikabe: how a round works

Nurikabe gives you a focused activity to play in your browser. 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. Choose a clear next step rather than rushing through the instructions.

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

Bring this focus to a round

Keep the stated aim separate from side details such as animation or appearance. Progress is measured by the game’s own completion or scoring rules. Make the next step deliberately.

Understand the aim

Create one connected sea around numbered islands of exactly the stated size, without a 2×2 sea block. Read that aim before choosing your first action. The example below illustrates a decision.

The steps to play

  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.

How to use the controls

Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution. Read a button’s label before selecting it. A new-round button replaces the current round.

Try this example

An island labelled 1 is already complete, so its edge neighbours must be sea. Your next round may have a different position, so inspect it before acting. Take a moment to compare.

Avoid this misunderstanding

Two numbered islands may not merge into one. Read the feedback to see why an action did not have the expected result. Watch the feedback after an action. A message can explain whether the input was accepted or whether a rule needs attention.

A few questions answered

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.

As a new player, 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.

While reading the Guide, what example helps explain Nurikabe?

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

For my first round, what should I watch out for in Nurikabe?

The key detail is this: Two numbered islands may not merge into one.

When I return, what format does Nurikabe offer?

Keep this in mind: Play ten compact 5×5 puzzles. Some boards begin with fixed shaded sea cells.

When I return, which play mode does Nurikabe use?

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

Where should I start with Nurikabe?

Here is the relevant explanation: Shade sea squares and leave islands white.

On this playing page, do I need an account or a payment for Nurikabe?

Keep this in mind: No player account or payment is needed. Game scores are recreational results, not cash prizes.

While reading the Guide, how can I find Nurikabe again?

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

While reading the Guide, how do I report an issue with Nurikabe?

For clarity: 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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