How to Play Slitherlink

THE PLAYBOOK · 5438GAME

The essentials of playing Slitherlink

Use a short break to learn the rhythm of Slitherlink. Draw one closed loop whose edges match the count around every numbered cell. Choose a clear next step rather than rushing through the instructions. Identify the playing area and the controls you need. Choose a clear next step rather than rushing through the instructions.

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

Practice with a purpose

Compare the worked example with your own position. Use the reasoning, not an answer copied from a different board. Refer to the controls when needed.

What you need to achieve

Draw one closed loop whose edges match the count around every numbered cell. The feedback beside the game helps you follow the round. Take a moment to understand the current position.

Start here and follow along

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.

Choosing and moving on screen

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. Make sure you are interacting with the game rather than the surrounding page.

Put the rules into context

A 0 cell has no loop edge around it; a 3 has exactly three. Apply the same reasoning to the position in your own round. Consider the next action carefully.

A common point of confusion

Several small loops are invalid even if clues match. Take a moment to reassess the position before continuing. Watch the feedback after an action. A message can explain whether the input was accepted or whether a rule needs attention.

If you are unsure