THE PLAYBOOK · PT-BUS
How to play Slitherlink
A round of Slitherlink at PT-BUS begins with understanding the objective. Draw one closed loop whose edges match the count around every numbered cell. The learning focus here is review the result, supported by the rule notes below.
Ten checked 4×4 loop puzzles with all cell clues shown.
Review the result
When a round finishes, compare what happened with the winning or scoring condition. Use that comparison to choose a better approach next 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 mistake should I watch for?
Several small loops are invalid even if clues match.
Which play mode is provided?
Solo
What is the main objective in this edition?
Draw one closed loop whose edges match the count around every numbered cell.
