Game guide · BJTENGYUE
Play Lights Out with the rules at hand
Bring your attention to one round 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. Use the example below to understand a decision. Treat the first round as a chance to learn the controls. Look at what changes after your first action.
Give this approach a try
After a move, check what changed. Decide which rule explains the new state before acting again. Notice the feedback after each input.
Aim for this result
Turn every light off. Every supplied starting state is made by valid flips from an all-off board and is therefore solvable. Use the instructions to see which actions move you towards it. Check the rules when you are unsure.
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. Read a button’s label before selecting it. Make sure you are interacting with the game rather than the surrounding page.
See the idea in action
Tapping the centre changes five cells. Tapping a corner changes three. Diagonal neighbours are not affected. Your next round may have a different position, so inspect it before acting. Verify the rule before continuing.
Notice this detail
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.
More answers before you play
Before I begin, 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.
For a quick reminder, how do I control Lights Out?
Here is the relevant explanation: Use the on-screen controls with a mouse or touch.
For this browser game, what example helps explain Lights Out?
For clarity: Tapping the centre changes five cells. Tapping a corner changes three. Diagonal neighbours are not affected.
For a quick reminder, 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 reading the Guide, 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.
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?
For clarity: Select a light or an unlit tile.
While reading the Guide, do I need an account or a payment for Lights Out?
The key detail is this: 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?
The key detail is this: 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?
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.