THE PLAYBOOK · HTSIFA
How to play Lights Out
Start Lights Out by looking at the playing area and its controls. 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. Compare the starting position with the example in the Guide. Keep the game area visible while you use its controls.
Notice the feedback
Watch the feedback after an action. A message can explain whether the input was accepted or whether a rule needs attention. 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. The feedback beside the game helps you follow the round. Check the rules when you are unsure.
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. Keep the playing area visible while using these controls. Read the example below alongside these instructions.
A useful example
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. Take a moment to compare.
Watch out for this
An unlit tile can still be tapped; it may be necessary to solve the board. Compare the situation with the worked example. Watch the feedback after an action. A message can explain whether the input was accepted or whether a rule needs attention.
Common questions
As a new player, 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 this browser game, how do I control Lights Out?
Use the on-screen controls with a mouse or touch.
While learning, what example helps explain Lights Out?
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?
Here is the relevant explanation: 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.
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.