Hubbard
How to play Light Up
- A bulb lights its own square and shines along its row and column until a wall.
- Two bulbs may never see one another.
- A numbered wall must touch exactly that many bulbs above, below, left or right.
- Tap an open square to cycle empty, bulb and X. The puzzle completes once every square is lit and every rule is satisfied.
Your first useful move
Look for dark squares with only one remaining place that could illuminate them. A bulb lights its row and column until a wall, but must never shine onto another bulb.
Playing on HubbardGames
Open a Library board to find this game’s controls. The how-to-play button keeps the rules close by while you solve, so you can check a detail without leaving the puzzle.
Choose your difficulty
The Library shows the available difficulty levels for this game. Choose a board that suits you, then return for another when you want more practice.
Can I practise without affecting the league?
Yes. Choose a puzzle from the Library to practise this game. Library practice does not add league points. You can return to an unfinished puzzle later.
