Game guide · CSDJJY
Lights Out: what to know before playing
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. Check the relevant rule before repeating a move. Choose a comfortable screen position before beginning. Choose a clear next step rather than rushing through the instructions.
Something to practise
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.
The objective of a round
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. Return to the instructions when a step is unclear.
Work through the instructions
- 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. A careful first action helps you become familiar with the layout. Avoid pressing the same control repeatedly while a move is being processed.
Learn from a sample situation
Tapping the centre changes five cells. Tapping a corner changes three. Diagonal neighbours are not affected. Compare this with the rule that governs the move. Read the matching step again.
Keep this in mind
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.
Questions about this game
For my first round, what is the goal of Lights Out?
Here is the relevant explanation: 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.
While reading the Guide, 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.
When I return, 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.
When I return, what format does Lights Out offer?
For clarity: Play using the solo mode shown on this page. Read the controls before starting a new round.
As a new player, 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.
As a new player, where should I start with Lights Out?
For clarity: Select a light or an unlit tile.
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.
For a quick reminder, 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.
For this browser game, how do I report an issue with Lights Out?
Keep this in mind: 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.
