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XAXJGG

Solo · FREE PLAY

Nurikabe

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Logic & numbers
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Game guide · XAXJGG

Learn the rules of Nurikabe

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. Look at what changes after your first action. 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.

An idea for your next attempt

When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round. Use the example to check your reasoning.

The goal to keep in mind

Create one connected sea around numbered islands of exactly the stated size, without a 2×2 sea block. An attractive position is not enough unless the goal is met. Take a moment to understand the current position.

Start here and follow along

  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. Read a button’s label before selecting it. Avoid pressing the same control repeatedly while a move is being processed.

See how the rules apply

An island labelled 1 is already complete, so its edge neighbours must be sea. Compare this with the rule that governs the move. Notice the change in the playing area.

Watch out for this

Two numbered islands may not merge into one. Take a moment to reassess the position before continuing. 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.

Questions that come up during play

For this browser game, what is the goal of Nurikabe?

Keep this in mind: 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.

Before I begin, what example helps explain Nurikabe?

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?

Keep this in mind: Two numbered islands may not merge into one.

While learning, what format does Nurikabe offer?

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

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.

When I return, where should I start with Nurikabe?

Shade sea squares and leave islands white.

For this browser game, 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?

The key detail is this: 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?

Here is the relevant explanation: 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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