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XINNINGBAO

Solo · FREE PLAY

Nurikabe

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

How to play Nurikabe

Open Nurikabe, check the instructions and begin a round. Create one connected sea around numbered islands of exactly the stated size, without a 2×2 sea block. Choose a clear next step rather than rushing through the instructions. 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.

A small practice goal

When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round. Make the next step deliberately.

What you need to achieve

Create one connected sea around numbered islands of exactly the stated size, without a 2×2 sea block. The feedback beside the game helps you follow the round. Try to explain the aim in your own words.

How to proceed

  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 your actions work

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. Check any mode label before starting.

See the idea in action

An island labelled 1 is already complete, so its edge neighbours must be sea. Apply the same reasoning to the position in your own round. Choose a deliberate next step.

Watch out for this

Two numbered islands may not merge into one. Read the feedback to see why an action did not have the expected result. 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.

A few questions answered

While learning, 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.

While reading the Guide, how do I control Nurikabe?

Keep this in mind: 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?

For clarity: An island labelled 1 is already complete, so its edge neighbours must be sea.

On this playing page, what should I watch out for in Nurikabe?

For clarity: Two numbered islands may not merge into one.

As a new player, what format does Nurikabe offer?

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

When I return, which play mode does Nurikabe use?

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

While reading the Guide, where should I start with Nurikabe?

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

While reading the Guide, do I need an account or a payment for Nurikabe?

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

While learning, how can I find Nurikabe again?

Keep this in mind: 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?

The key detail is this: 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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