THE PLAYBOOK · ZRZCH
The essentials of playing Nurikabe
Make Nurikabe your next activity in the game library. 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. Treat the first round as a chance to learn the controls. Look at what changes after your first action.
Play ten compact 5×5 puzzles. Some boards begin with fixed shaded sea cells.
Something to practise
After a move, check what changed. Decide which rule explains the new state before acting again. Make the next step deliberately.
What you are aiming for
Create one connected sea around numbered islands of exactly the stated size, without a 2×2 sea block. An attractive position is not enough unless the goal is met. Review the board or playing area as it changes.
The steps to play
- 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.
How your actions work
Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution. Keep the playing area visible while using these controls. Read the example below alongside these instructions.
Try this 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. Keep the controls nearby.
Avoid this misunderstanding
Two numbered islands may not merge into one. Compare the situation with the worked example. Before your first action, say what you are trying to achieve. Then compare the result with the goal.
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.
How do I control Nurikabe?
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?
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 this browser game, what format does Nurikabe offer?
Keep this in mind: Play ten compact 5×5 puzzles. Some boards begin with fixed shaded sea cells.
Before I begin, which play mode does Nurikabe use?
The key detail is this: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.
