How to Play Slitherlink

THE PLAYBOOK · BOYUEJINSHU

How to play Slitherlink

Bring your attention to one round of Slitherlink. Draw one closed loop whose edges match the count around every numbered cell. Use the example below to understand a decision. Compare the starting position with the example in the Guide. Look at what changes after your first action.

Ten 4×4 loop puzzles with all cell clues shown.

Build a steady rhythm

Take enough time to read a new position. If a game has a timer, learn its controls first rather than searching for them during the round. Refer to the controls when needed.

Your goal

Draw one closed loop whose edges match the count around every numbered cell. The feedback beside the game helps you follow the round. Follow this game’s rules rather than another version’s.

Step by step

1. Click an edge to draw, exclude or clear it.
2. Count the four edges around each cell.
3. Do not branch or form separate loops.
4. 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 careful first action helps you become familiar with the layout. Look at the feedback after the action.

A useful example

A 0 cell has no loop edge around it; a 3 has exactly three. Use the example as a guide rather than a substitute for reading your board. Consider the next action carefully.

Watch out for this

Several small loops are invalid even if clues match. Take a moment to reassess the position before continuing. Compare the worked example with your own position. Use the reasoning, not an answer copied from a different board.

Common questions