Lights Out

Tap a tile and it flips itself and its four neighbours. Work out the sequence that turns every light off. The classic toggle-logic puzzle — fewer moves is better.

Trains: Deductive logic · Category: Logic & Puzzles

How to play: Lights Out is a free, browser-based brain-training game in the Brain Gym suite. Play it instantly — no sign-up, works offline, and your best scores are saved on your device.

Play Lights Out · All Brain Gym games