Category | Price | Seller | Device |
---|---|---|---|
Games | Free | Yuki Fujimoto | iPhone, iPad, iPod |
Rule is very simple.
1. Lightbulbs shine every cell vertically and horizontally until they reach a black cell or the boundary.
2. Numbers in some black cells denote the number of lightbulbs in adjacent cells.
3. Lightbulbs themselves are not lit by other lightbulbs.