THE PLAYBOOK · SCBLUELAW
How to play Nurikabe
Use a short break to learn the rhythm of Nurikabe. 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. Begin with the solo mode shown on the page. Keep the game area visible while you use its controls.
Play ten compact 5×5 puzzles. Some boards begin with fixed shaded sea cells.
Keep the aim in sight
Keep the stated aim separate from side details such as animation or appearance. Progress is measured by the game’s own completion or scoring rules. Make the next step deliberately.
Your goal
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. Take a moment to understand the current position.
Step by step
- 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.
Controls
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. Return to the rules if the result is unexpected.
A useful example
An island labelled 1 is already complete, so its edge neighbours must be sea. Compare this with the rule that governs the move. Choose a deliberate next step.
Watch out for this
Two numbered islands may not merge into one. A different version of the game may use a different rule. After a move, check what changed. Decide which rule explains the new state before acting again.
Common questions
For this browser game, what is the goal of Nurikabe?
For clarity: 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?
Keep this in mind: 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?
Here is the relevant explanation: Two numbered islands may not merge into one.
For my first round, what format does Nurikabe offer?
The key detail is this: Play ten compact 5×5 puzzles. Some boards begin with fixed shaded sea cells.
Before I begin, 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.
