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BJTENGYUE

Solo · FREE PLAY

Nurikabe

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Logic & numbers
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Game guide · BJTENGYUE

Learn your way around Nurikabe

Read the aim of Nurikabe, then make your first move. 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. 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.

An idea for your next attempt

Before your first action, say what you are trying to achieve. Then compare the result with the goal. Use the example to check your reasoning.

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. Try to explain the aim in your own words.

How a round unfolds

  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. Keep the playing area visible while using these controls. Use the visible help when you are unsure of the next input.

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. Consider the next action carefully.

A common point of confusion

Two numbered islands may not merge into one. Compare the situation with the worked example. Read one step at a time and try it on the playing area. Match the instruction to the control you use.

Answers about the rules and controls

For this browser game, 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.

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 learning, what example helps explain Nurikabe?

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

What should I watch out for in Nurikabe?

Keep this in mind: 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.

Before I begin, which play mode does Nurikabe use?

The key detail is this: 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?

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

While learning, 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.

For this browser game, how can I find Nurikabe again?

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?

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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