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SHOUJIKON

RULES & PRACTICE

How to Play Nurikabe

Play Nurikabe ↗

Game guide · SHOUJIKON

Understand the basics of Nurikabe

Take a moment with Nurikabe before moving to another game. 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.

Something to practise

Watch the feedback after an action. A message can explain whether the input was accepted or whether a rule needs attention. Keep the objective visible.

The goal to keep in mind

Create one connected sea around numbered islands of exactly the stated size, without a 2×2 sea block. Read that aim before choosing your first action. Review the board or playing area as it changes.

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.

How to interact with the game

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.

Follow the example

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.

Keep this in mind

Two numbered islands may not merge into one. A different version of the game may use a different rule. Compare the worked example with your own position. Use the reasoning, not an answer copied from a different board.

Further help with the game

For my first round, what is the goal of Nurikabe?

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?

Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.

For my first round, what example helps explain Nurikabe?

For clarity: 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?

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

For my first round, what format does Nurikabe offer?

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

As a new player, 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.

Where should I start with Nurikabe?

Keep this in mind: 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.

Before I begin, 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.

For this browser game, how do I report an issue with Nurikabe?

Keep this in mind: 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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