Game guide · DELIMETCH
Lights Out: how a round works
Read the aim of Lights Out, then make your first move. 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. Choose a comfortable screen position before beginning. Keep the game area visible while you use its controls.
Give this approach a try
Choose one rule to keep in mind for this round. Apply it consistently rather than guessing what another version might allow. Notice the feedback after each input.
What you need to achieve
Turn every light off. Every supplied starting state is made by valid flips from an all-off board and is therefore solvable. The feedback beside the game helps you follow the round. Review the board or playing area as it changes.
The playing sequence
- 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. Use the control method described here for this activity. Contact us with the game and device if a control does not respond.
Learn from a sample situation
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. Consider the next action carefully.
An important reminder
An unlit tile can still be tapped; it may be necessary to solve the board. Take a moment to reassess the position before continuing. Keep the stated aim separate from side details such as animation or appearance. Progress is measured by the game’s own completion or scoring rules.
A few questions answered
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.
For a quick reminder, how do I control Lights Out?
Keep this in mind: Use the on-screen controls with a mouse or touch.
For this browser game, 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.
While learning, what should I watch out for in Lights Out?
For clarity: An unlit tile can still be tapped; it may be necessary to solve the board.
For this browser game, what format does Lights Out offer?
Here is the relevant explanation: Play using the solo mode shown on this page. Read the controls before starting a new round.
For my first round, which play mode does Lights Out use?
Here is the relevant explanation: 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?
For clarity: Select a light or an unlit tile.
As a new player, 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.
While reading the Guide, 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.
For a quick reminder, 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.