THE PLAYBOOK · PT-BUS
How to play Lights Out
Lights Out on PT-BUS is organised around a clear objective: Turn every light off. Every supplied starting state is made by valid flips from an all-off board and is therefore solvable. Begin with observe, then act and use the playbook beside the game.
Observe, then act
Look at the full play area and read the status message. Make a deliberate choice and compare the outcome with your expectation.
Your goal
Turn every light off. Every supplied starting state is made by valid flips from an all-off board and is therefore solvable.
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.
A useful example
Tapping the centre changes five cells. Tapping a corner changes three. Diagonal neighbours are not affected.
Watch out for this
An unlit tile can still be tapped; it may be necessary to solve the board.
Common questions
What is included in this edition?
Turn off a five-by-five board of lights. Each tap flips the selected tile and its immediate up, down, left and right neighbours.
Which controls should I use?
Use the on-screen controls with a mouse or touch.
Can you show a concrete example?
Tapping the centre changes five cells. Tapping a corner changes three. Diagonal neighbours are not affected.
