- Light Up
- <p>
- Place light bulbs in the grid so as to light up all the blank
- squares. A light illuminates its own square and all the squares in
- the same row or column unless blocked by walls (black squares).
- Lights may not illuminate each other. Each numbered square must be
- orthogonally adjacent to exactly the given number of lights.
- <p>
- Click on a square to place or remove a light. Right-click to place a
- dot indicating that you think there is no light in that square.
|