How to Play
Light Up, also known as Akari, gives you a grid with black and white cells. Place light bulbs on white cells so that every white cell is illuminated by at least one bulb. Bulbs shine in four directions until a black cell blocks the ray.
Bulbs cannot illuminate each other. Numbered black cells indicate exactly how many bulbs must be placed adjacent to them.
Controls
Click a white cell to place or remove a bulb. Some versions highlight illuminated cells automatically.
Scoring
Time and the number of bulbs used are scored. Efficient solutions use fewer bulbs.
