LightOut
LightOut, commonly known as Lights Out, is a puzzle video game and brain teaser focused on a grid of lights. The standard version uses a 5-by-5 grid, though variants with different sizes exist.
In the game, pressing a light toggles that light and its orthogonal neighbors (up, down, left, right).
The original and best-known version was released as a handheld electronic game by Tiger Electronics in 1995.
From a mathematical standpoint, Lights Out is a linear puzzle over the field with two elements. Each
Legacy and influence: Lights Out has educational value in teaching problem-solving and linear algebra concepts, and