It’s late and every porch light on the street is on. Turn them all off.
Tapping a light flips it and the lights above, below, left and right of it. Lit ones go dark, dark ones light up.
You can also use the arrow keys to move around the board and Enter or Space to tap.
The order doesn’t matter, and tapping the same light twice undoes it (on Sunday’s two-color boards it takes three taps). Par is the fewest taps that clears the board.
⭐⭐⭐ at par, ⭐⭐ within two of par, ⭐ for any solve. A hint caps the day at two stars.
Daily: one board a day, easy on Monday and hardest on Saturday. Sunday is a twist. Some Sundays the edges wrap around, so a light on one edge also flips its neighbor on the opposite edge. Other Sundays the bulbs have two colors: each tap moves a light one step, dark to amber to blue and back to dark. Classic keeps serving boards that get harder as you go. Practice lets you pick a size.
A puzzle in the style of the 1995 Lights Out handheld. Stats stay on this device only.