Game guide · JIEHUIDB
Lights Out: instructions and practice
Try Lights Out at your own pace and keep its objective in view. Turn every light off. Every supplied starting state is made by valid flips from an all-off board and is therefore solvable. Choose a clear next step rather than rushing through the instructions. Treat the first round as a chance to learn the controls. Look at what changes after your first action.
Bring this focus to a round
Locate the buttons and input area before beginning a long round. Use the on-screen labels to avoid an accidental restart. Keep the objective visible.
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. Keep that objective in view throughout the round. Take a moment to understand the current position.
A walkthrough of the rules
- Select a light or an unlit tile.
- The selected tile and its orthogonal neighbours switch state.
- Plan flips so that previously cleared rows stay cleared.
- Use Undo to try another approach.
How to interact with the game
Use the on-screen controls with a mouse or touch. Read a button’s label before selecting it. Make sure you are interacting with the game rather than the surrounding page.
An example to follow
Tapping the centre changes five cells. Tapping a corner changes three. Diagonal neighbours are not affected. Use the example as a guide rather than a substitute for reading your board. Keep the controls nearby.
Notice this detail
An unlit tile can still be tapped; it may be necessary to solve the board. Compare the situation with the worked example. Choose one rule to keep in mind for this round. Apply it consistently rather than guessing what another version might allow.
If you are unsure
For a quick reminder, what is the goal of Lights Out?
Keep this in mind: Turn every light off. Every supplied starting state is made by valid flips from an all-off board and is therefore solvable.
When I return, how do I control Lights Out?
Keep this in mind: Use the on-screen controls with a mouse or touch.
For a quick reminder, what example helps explain Lights Out?
The key detail is this: Tapping the centre changes five cells. Tapping a corner changes three. Diagonal neighbours are not affected.
While reading the Guide, what should I watch out for in Lights Out?
An unlit tile can still be tapped; it may be necessary to solve the board.
For my first round, what format does Lights Out offer?
Keep this in mind: Play using the solo mode shown on this page. Read the controls before starting a new round.
For a quick reminder, which play mode does Lights Out use?
The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.
When I return, where should I start with Lights Out?
The key detail is this: Select a light or an unlit tile.
When I return, 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.
How can I find Lights Out again?
Keep this in mind: Use the Games list or save this game page in your browser bookmarks. The Guide is linked from the playing page.
As a new player, how do I report an issue with Lights Out?
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.