THE PLAYBOOK · AHETV
How to play Nurikabe
Take a moment with Nurikabe before moving to another game. Create one connected sea around numbered islands of exactly the stated size, without a 2×2 sea block. Look at what changes after your first action. Read the objective before making your first input. Check the relevant rule before repeating a move.
Play ten compact 5×5 puzzles. Some boards begin with fixed shaded sea cells.
Review a difficult moment
When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round. Notice the feedback after each input.
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. Keep the controls in easy reach.
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. On a smaller screen, keep the active part of the board within view. 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. Your next round may have a different position, so inspect it before acting. Look for the relevant detail.
Watch out for this
Two numbered islands may not merge into one. Read the feedback to see why an action did not have the expected result. When a decision goes wrong, compare it with the common mistake described below. Start again only when you intend to leave the current round.
Common questions
While learning, 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.
For this browser game, 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.
On this playing page, what example helps explain Nurikabe?
Keep this in mind: 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?
The key detail is this: 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.
Which play mode does Nurikabe use?
Here is the relevant explanation: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.
