Game guide · HONGENJY
Play Nurikabe with the rules at hand
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. Use the example below to understand a decision.
Play ten compact 5×5 puzzles. Some boards begin with fixed shaded sea cells.
A focus for your next round
Watch the feedback after an action. A message can explain whether the input was accepted or whether a rule needs attention. Refer to the controls when needed.
What you need to achieve
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. Check the rules when you are unsure.
Making your moves
- 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. A careful first action helps you become familiar with the layout. Use one clear input at a time.
A useful example
An island labelled 1 is already complete, so its edge neighbours must be sea. Use the example as a guide rather than a substitute for reading your board. Check the stated objective.
Where a round can go wrong
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.
Common questions
While reading the Guide, what is the goal of Nurikabe?
Here is the relevant explanation: 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?
The key detail is this: 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?
An island labelled 1 is already complete, so its edge neighbours must be sea.
While learning, 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?
Here is the relevant explanation: Play ten compact 5×5 puzzles. Some boards begin with fixed shaded sea cells.
While learning, 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.
When I return, 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?
Here is the relevant explanation: No player account or payment is needed. Game scores are recreational results, not cash prizes.
While learning, how can I find Nurikabe again?
For clarity: Use the Games list or save this game page in your browser bookmarks. The Guide is linked from the playing page.
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.