THE PLAYBOOK · CQXSJINPENG
How to play Lights Out
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. Identify the playing area and the controls you need. Use the example below to understand a decision.
Focus on one rule
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.
Your goal
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. Notice how the game responds to your input.
Step by step
- 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.
Controls
Use the on-screen controls with a mouse or touch. Use the control method described here for this activity. Use the visible help when you are unsure of the next input.
A useful example
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. Verify the rule before continuing.
Watch out for this
An unlit tile can still be tapped; it may be necessary to solve the board. Take a moment to reassess the position before continuing. Compare the worked example with your own position. Use the reasoning, not an answer copied from a different board.
Common questions
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?
For clarity: Use the on-screen controls with a mouse or touch.
On this playing page, 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 learning, 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?
Play using the solo mode shown on this page. Read the controls before starting a new round.
Before I begin, which play mode does Lights Out use?
For clarity: The mode on this page is Solo. Same-device play uses one screen; this game library does not provide internet matchmaking.