Lights Out

The classic 5×5 puzzle. Tapping a light flips it and its four neighbours: switch them all off. Puzzles are made by pressing random cells, so every one is solvable. Your best score is saved in the browser.

Make a Lights Out puzzle game as one HTML file: 5×5 grid, glowing amber lights on a dark background, a move counter, best score saved in localStorage, works with mouse, touch and keyboard.