Controls at a glance
About this game
Lights Out is a 5×5 toggle puzzle in which a press changes several cells at once. A move can turn some lights off while turning others on, so the effect matters more than the number of lit cells it immediately removes.
Turn all 25 lights off to clear the board. There is no countdown, move cap, or failed-board state. Each generated puzzle starts from an all-off board and applies a sequence of toggles, which guarantees there is a sequence that returns it to all off.
Pressing a cell flips that light and its up, down, left, and right neighbors. There is no wrapping across edges. A center press affects five lights, an edge press four, and a corner press three.
For example, pressing the top-left corner toggles row 1 column 1, row 1 column 2, and row 2 column 1. Pressing it again restores those three cells to their prior states. Toggles commute: the order of a fixed set of presses does not change its final board, although every press still counts toward moves.
A solved board adds to your completion count, and a lower winning press count can replace your best. Two identical presses cancel their board effect but count as two moves, so avoid them when improving that record.
One systematic approach is to choose first-row presses, then work downward: to turn off a light in row 1, press the cell immediately below it in row 2. Continue through row 5. If the last row remains lit, revise the first-row choices; the process is a way to organize trials, not a promise that the first attempt works.
nocharge:lights-out:puzzles-solved stores completed boards and nocharge:lights-out:best-moves stores the fewest presses used for a clear. The current 25-light pattern is not persisted. Refreshing generates another solvable puzzle while retaining these personal localStorage metrics.
Player notes
Original articles about the systems and decisions inside Lights Out.
Lights Out
NoCharge generates every Lights Out puzzle by pressing from a solved board, so solvability is a property of the generator, not a promise. What that means for play and for honesty.
Turn every light off with five-cell toggles. A 5×5 grid where pressing a light toggles it and its four neighbours. Every puzzle is generated from a solved board, so it is solvable by construction. Untimed, keyboard-complete.
Yes. The game opens without an account, subscription, or cloud profile.
Press: Click or tap a light; Enter or Space presses the focused light. Move: Arrow keys move the focus cursor; each cell is announced as a light on or off. New puzzle: Every puzzle is generated by pressing from a solved board, so it is solvable by construction.
Any result or preference the game retains is stored in local storage in this browser. It does not synchronize between devices and can be removed with Clear game data.
The shared game shell pauses while the page is hidden and stops ambient audio. Returning removes the hidden-page pause, but a manual pause remains in place.
Use New game in the shared toolbar or settings panel. Restarting this game does not clear saved results from other games.
The listed session is 2–6 min. Check the complete guide for mode-specific timing, scoring, and end conditions.
Master mute silences effects and ambient audio. Effects on/off changes game effects only, and the volume control also adjusts an active ambient texture.
