Game guide · HNSZDS
The essentials of playing Nurikabe
Choose a round of Nurikabe and settle into its rules. Create one connected sea around numbered islands of exactly the stated size, without a 2×2 sea block. Check the relevant rule before repeating a move. Read the objective before making your first input. Keep the game area visible while you use its controls.
Play ten compact 5×5 puzzles. Some boards begin with fixed shaded sea cells.
One thing to notice as you play
Watch the feedback after an action. A message can explain whether the input was accepted or whether a rule needs attention. Make the next step deliberately.
Aim for this result
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. Check the rules when you are unsure.
How to proceed
- 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.
Making selections and moves
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. Use the visible help when you are unsure of the next input.
A closer look at one example
An island labelled 1 is already complete, so its edge neighbours must be sea. Your next round may have a different position, so inspect it before acting. Look for the relevant detail.
Where a round can go wrong
Two numbered islands may not merge into one. Take a moment to reassess the position before continuing. Choose one rule to keep in mind for this round. Apply it consistently rather than guessing what another version might allow.
More answers before you play
For a quick reminder, 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 reading the Guide, 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.
For a quick reminder, what example helps explain Nurikabe?
Keep this in mind: An island labelled 1 is already complete, so its edge neighbours must be sea.
While reading the Guide, what should I watch out for in Nurikabe?
Two numbered islands may not merge into one.
What format does Nurikabe offer?
Keep this in mind: Play ten compact 5×5 puzzles. Some boards begin with fixed shaded sea cells.
While reading the Guide, which play mode does Nurikabe use?
The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.
Before I begin, where should I start with Nurikabe?
Keep this in mind: Shade sea squares and leave islands white.
Before I begin, do I need an account or a payment for Nurikabe?
Keep this in mind: No player account or payment is needed. Game scores are recreational results, not cash prizes.
Before I begin, how can I find Nurikabe again?
Keep this in mind: Use the Games list or save this game page in your browser bookmarks. The Guide is linked from the playing page.
While reading the Guide, 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.