THE PLAYBOOK · XH0411
How to play Lights Out
For Lights Out, XH0411 puts the actual rules alongside the playable board or activity. Turn every light off. Every supplied starting state is made by valid flips from an all-off board and is therefore solvable. The suggested practice focus is explain your choice.
Explain your choice
Try describing the reason for a move or action in one sentence. If the reason is unclear, revisit the rules before continuing.
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
Can you show a concrete example?
Tapping the centre changes five cells. Tapping a corner changes three. Diagonal neighbours are not affected.
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.
