Light and Shadow
Light and Shadow is a Nikoli logic puzzle.
- Shade some cells in the grid.
- Each orthogonally connected area of only shaded or only unshaded cells contains exactly one clue.
- Some clued cells are given as shaded, and unshaded clues may not be shaded.
- A clue represents the size of the area of shaded or unshaded cells that the clue belongs to.