Game guide · MXZTJ
Nurikabe: how a round works
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. 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
Read one step at a time and try it on the playing area. Match the instruction to the control you use. Refer to the controls when needed.
What the game asks you to do
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. Take a moment to understand the current position.
The order of play
- Shade sea squares and leave islands white.
- Every island contains exactly one clue.
- Different islands cannot meet along an edge.
- Check puzzle verifies sizes, connectivity and forbidden sea blocks.
Your inputs
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.
A useful example
An island labelled 1 is already complete, so its edge neighbours must be sea. Focus on why the action is allowed, not only its outcome. Choose a deliberate next step.
A mistake to avoid
Two numbered islands may not merge into one. A different version of the game may use a different rule. Locate the buttons and input area before beginning a long round. Use the on-screen labels to avoid an accidental restart.
More answers before you play
When I return, 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 learning, how do I control Nurikabe?
Here is the relevant explanation: Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.
When I return, what example helps explain Nurikabe?
Here is the relevant explanation: 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.
When I return, what format does Nurikabe offer?
Keep this in mind: Play ten compact 5×5 puzzles. Some boards begin with fixed shaded sea cells.
As a new player, 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.
Where should I start with Nurikabe?
For clarity: Shade sea squares and leave islands white.
As a new player, do I need an account or a payment for Nurikabe?
Here is the relevant explanation: 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.
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.
