라이트 아웃은 칸과 상하좌우 이웃을 바꿔 모든 불을 끄는 5×5 클래식 스위치 퍼즐입니다.
The board is a compact logic field: every press changes a cross-shaped group, so a move that helps one edge can create a new obligation nearby.
A fixed puzzle loop keeps the goal readable. Solve the board, inspect the move count, then Replay or choose New Puzzle to practice a different route.
Lights Out uses a 5x5 board. A tile press toggles the selected tile plus its up, down, left, and right neighbors when those cells exist.
The puzzle is solved when every light is off. Hint marks one legal candidate without playing it; Undo restores the prior board and move count.
Start Game opens Battle directly. Result reports the solved board and offers Replay, Menu, and Close; progress and preferences remain local to this browser.
Each round uses the same readable 5x5 rule set, while Replay and New Puzzle provide repeatable practice with a fresh board.
Improvement is measured by solving cleanly and reducing moves; there is no timer, account level, or purchase gate.
Lights Out uses the shared Classic Logic Lab shell, a responsive 5x5 board, direct Main-to-Battle flow, advisory Hint, reversible Undo, solved Result feedback, and browser-local settings.
라이트 아웃은 일반 이용자를 위한 브라우저 퍼즐입니다. 계정이나 구매가 필요 없으며 설정과 사용 가능한 최고 기록은 이 브라우저에 저장됩니다.