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ZJJ-HC

Solo · FREE PLAY

Nurikabe

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Logic & numbers
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Game guide · ZJJ-HC

Learn your way around Nurikabe

Bring your attention to one round of Nurikabe. 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.

Something to practise

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. Refer to the controls when needed.

What counts as success

Create one connected sea around numbered islands of exactly the stated size, without a 2×2 sea block. Keep that objective in view throughout the round. Notice how the game responds to your input.

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.

Making selections and moves

Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution. On a smaller screen, keep the active part of the board within view. Look at the feedback after the action.

An example before you play

An island labelled 1 is already complete, so its edge neighbours must be sea. Compare this with the rule that governs the move. Keep the controls nearby.

Keep this in mind

Two numbered islands may not merge into one. Check the rule before repeating the action. After a move, check what changed. Decide which rule explains the new state before acting again.

Game-specific help

Before I begin, 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?

The key detail is this: Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.

On this playing page, what example helps explain Nurikabe?

Here is the relevant explanation: An island labelled 1 is already complete, so its edge neighbours must be sea.

While reading the Guide, what should I watch out for in Nurikabe?

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

What format does Nurikabe offer?

Here is the relevant explanation: 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.

On this playing page, where should I start with Nurikabe?

Keep this in mind: Shade sea squares and leave islands white.

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.

For my first round, 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.

For a quick reminder, 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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