HOW TO PLAY

1. Tap a floor square to put a lamp there. Tap again to take it away.
2. A lamp lights its own square and shines along its row and column until it hits a wall.
3. Every floor square must be lit.
4. Two lamps must never shine on each other. If they do, they turn red.
5. A number on a wall says how many lamps touch it (up, down, left and right). Walls with no number can have any.
6. Tip: a 4 has lamps on all four sides, and a 0 has none. Use • Dots to mark squares that cannot have a lamp.
7. Solve it without hints for 3 stars ⭐⭐⭐. Every puzzle has exactly one answer.

ALL LIT UP!