THE PLAYBOOK · IHAHOOO
How to play Slitherlink
Read the aim of Slitherlink, then make your first move. Draw one closed loop whose edges match the count around every numbered cell. Check the relevant rule before repeating a move. Use the opening round to become familiar with the layout. Check the relevant rule before repeating a move.
Ten 4×4 loop puzzles with all cell clues shown.
Try a deliberate move
After a move, check what changed. Decide which rule explains the new state before acting again. Use the example to check your reasoning.
Your goal
Draw one closed loop whose edges match the count around every numbered cell. Keep that objective in view throughout the round. Return to the instructions when a step is unclear.
Step by step
- Click an edge to draw, exclude or clear it.
- Count the four edges around each cell.
- Do not branch or form separate loops.
- Check puzzle verifies every clue and loop connectivity.
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
A 0 cell has no loop edge around it; a 3 has exactly three. Your next round may have a different position, so inspect it before acting. Look for the relevant detail.
Watch out for this
Several small loops are invalid even if clues match. A different version of the game may use a different rule. 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
For a quick reminder, what is the goal of Slitherlink?
Here is the relevant explanation: Draw one closed loop whose edges match the count around every numbered cell.
As a new player, how do I control Slitherlink?
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.
For a quick reminder, what example helps explain Slitherlink?
A 0 cell has no loop edge around it; a 3 has exactly three.
As a new player, what should I watch out for in Slitherlink?
For clarity: Several small loops are invalid even if clues match.
For this browser game, what format does Slitherlink offer?
Ten 4×4 loop puzzles with all cell clues shown.
For this browser game, which play mode does Slitherlink use?
For clarity: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.