Lights Out

Start with the core loop

Play Lights Out free online. Every press toggles a light and its neighbours. Turn the whole board dark in as few moves as you can.

Press a light to toggle it and its orthogonal neighbours. Restart preserves the current puzzle.

Build a better run

Daily and random boards across multiple sizes turn every solve into a move-efficiency challenge.

Play with intent

Work row by row: once a row is settled, use the row beneath it to clear remaining lights above.