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SNAZN

RULES & PRACTICE

How to Play Nurikabe

Play Nurikabe ↗

Game guide · SNAZN

Nurikabe: how a round works

Use a short break to learn the rhythm of Nurikabe. 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. Use the example below to understand a decision.

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

Practice beyond the first move

Choose one rule to keep in mind for this round. Apply it consistently rather than guessing what another version might allow. Use the example to check your reasoning.

What counts as success

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. The example below illustrates a decision.

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.

Choosing and moving on screen

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.

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. Take a moment to compare.

Check this before moving on

Two numbered islands may not merge into one. A different version of the game may use a different rule. Before your first action, say what you are trying to achieve. Then compare the result with the goal.

Further help with the game

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.

For a quick reminder, how do I control Nurikabe?

For clarity: 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?

The key detail is this: 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.

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?

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.

For a quick reminder, where should I start with Nurikabe?

Shade sea squares and leave islands white.

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.

For this browser game, 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.

On this playing page, 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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