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FHSYQ

RULES & PRACTICE

How to Play Lights Out

Play Lights Out ↗

Game guide · FHSYQ

Lights Out: instructions and practice

Take a moment with Lights Out before moving to another game. Turn every light off. Every supplied starting state is made by valid flips from an all-off board and is therefore solvable. Keep the game area visible while you use its controls. Treat the first round as a chance to learn the controls. Look at what changes after your first action.

Practice with a purpose

Compare the worked example with your own position. Use the reasoning, not an answer copied from a different board. Notice the feedback after each input.

The purpose of your moves

Turn every light off. Every supplied starting state is made by valid flips from an all-off board and is therefore solvable. An attractive position is not enough unless the goal is met. Try to explain the aim in your own words.

Follow these playing steps

  1. Select a light or an unlit tile.
  2. The selected tile and its orthogonal neighbours switch state.
  3. Plan flips so that previously cleared rows stay cleared.
  4. Use Undo to try another approach.

Choosing and moving on screen

Use the on-screen controls with a mouse or touch. Read a button’s label before selecting it. Read the example below alongside these instructions.

A useful example

Tapping the centre changes five cells. Tapping a corner changes three. Diagonal neighbours are not affected. Apply the same reasoning to the position in your own round. Keep the game’s format in mind.

One detail worth checking

An unlit tile can still be tapped; it may be necessary to solve the board. Read the feedback to see why an action did not have the expected result. Watch the feedback after an action. A message can explain whether the input was accepted or whether a rule needs attention.

Read these answers for extra help

For a quick reminder, what is the goal of Lights Out?

Turn every light off. Every supplied starting state is made by valid flips from an all-off board and is therefore solvable.

Before I begin, how do I control Lights Out?

Use the on-screen controls with a mouse or touch.

On this playing page, what example helps explain Lights Out?

Keep this in mind: Tapping the centre changes five cells. Tapping a corner changes three. Diagonal neighbours are not affected.

For this browser game, what should I watch out for in Lights Out?

Keep this in mind: An unlit tile can still be tapped; it may be necessary to solve the board.

As a new player, what format does Lights Out offer?

The key detail is this: Play using the solo mode shown on this page. Read the controls before starting a new round.

While reading the Guide, which play mode does Lights Out use?

Keep this in mind: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.

On this playing page, where should I start with Lights Out?

Select a light or an unlit tile.

While learning, do I need an account or a payment for Lights Out?

No player account or payment is needed. Game scores are recreational results, not cash prizes.

Before I begin, how can I find Lights Out again?

Here is the relevant explanation: Use the Games list or save this game page in your browser bookmarks. The Guide is linked from the playing page.

While reading the Guide, how do I report an issue with Lights Out?

For clarity: Use the contact form and include the game name, browser, device and the actions that led to the issue. Do not send passwords or payment details.

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