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ZZQHMY

Solo · FREE PLAY

Lights Out

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Logic & numbers
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Game guide · ZZQHMY

The essentials of playing Lights Out

Choose a round of Lights Out and settle into its rules. Turn every light off. Every supplied starting state is made by valid flips from an all-off board and is therefore solvable. Look at what changes after your first action. Choose a comfortable screen position before beginning. Keep the game area visible while you use its controls.

Take a closer look while playing

Watch the feedback after an action. A message can explain whether the input was accepted or whether a rule needs attention. Notice the feedback after each input.

The challenge in front of you

Turn every light off. Every supplied starting state is made by valid flips from an all-off board and is therefore solvable. Read that aim before choosing your first action. Try to explain the aim in your own words.

A walkthrough of the rules

  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.

Input guidance

Use the on-screen controls with a mouse or touch. Keep the playing area visible while using these controls. Return to the rules if the result is unexpected.

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.

A useful caution

An unlit tile can still be tapped; it may be necessary to solve the board. A different version of the game may use a different rule. Choose one rule to keep in mind for this round. Apply it consistently rather than guessing what another version might allow.

Clarifying the way this game works

For my first round, what is the goal of Lights Out?

For clarity: 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.

For a quick reminder, what example helps explain Lights Out?

For clarity: Tapping the centre changes five cells. Tapping a corner changes three. Diagonal neighbours are not affected.

What should I watch out for in Lights Out?

The key detail is this: An unlit tile can still be tapped; it may be necessary to solve the board.

While learning, what format does Lights Out offer?

Play using the solo mode shown on this page. Read the controls before starting a new round.

While learning, which play mode does Lights Out use?

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

For my first round, where should I start with Lights Out?

The key detail is this: Select a light or an unlit tile.

For my first round, do I need an account or a payment for Lights Out?

Keep this in mind: No player account or payment is needed. Game scores are recreational results, not cash prizes.

When I return, how can I find Lights Out again?

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

When I return, how do I report an issue with Lights Out?

The key detail is this: 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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