THE PLAYBOOK · IHAHOOO
How to play Slitherlink
Start Slitherlink in your browser at IHAHOOO. Draw one closed loop whose edges match the count around every numbered cell. The page pairs the game with rules before speed, an example and answers about this edition.
Ten 4×4 loop puzzles with all cell clues shown.
Rules before speed
Work slowly for one round. Explain the rule behind each choice before trying to improve your score or completion time.
Your goal
Draw one closed loop whose edges match the count around every numbered cell.
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.
A useful example
A 0 cell has no loop edge around it; a 3 has exactly three.
Watch out for this
Several small loops are invalid even if clues match.
Common questions
What completes a round?
Draw one closed loop whose edges match the count around every numbered cell.
Which controls should I use?
Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution.
What can I play here?
Ten 4×4 loop puzzles with all cell clues shown.
Does play involve an account or cash?
No. Play is free, without registration, deposits, bets or cash prizes.
