Game guide · JSYRSD
Nurikabe: from controls to your first round
Start Nurikabe by looking at the playing area and its controls. Create one connected sea around numbered islands of exactly the stated size, without a 2×2 sea block. Keep the game area visible while you use its controls. 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.
Build familiarity through play
Locate the buttons and input area before beginning a long round. Use the on-screen labels to avoid an accidental restart. Use the example to check your reasoning.
Understand the aim
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. Review the board or playing area as it changes.
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.
Using the playing area
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. A new-round button replaces the current round.
Put the rules into context
An island labelled 1 is already complete, so its edge neighbours must be sea. Apply the same reasoning to the position in your own round. Choose a deliberate next step.
Avoid this misunderstanding
Two numbered islands may not merge into one. Compare the situation with the worked example. After a move, check what changed. Decide which rule explains the new state before acting again.
Clarifying the way this game works
As a new player, 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.
Before I begin, 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.
As a new player, what example helps explain Nurikabe?
Here is the relevant explanation: An island labelled 1 is already complete, so its edge neighbours must be sea.
For a quick reminder, what should I watch out for in Nurikabe?
Two numbered islands may not merge into one.
When I return, what format does Nurikabe offer?
For clarity: Play ten compact 5×5 puzzles. Some boards begin with fixed shaded sea cells.
While learning, 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.
For a quick reminder, where should I start with Nurikabe?
For clarity: Shade sea squares and leave islands white.
When I return, 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 this browser game, 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.
For my first round, 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.