Akari
Also called Light Up
Place light bulbs so every white cell is lit and no bulb shines on another.
Rules
A bulb lights its row and column, up to a black cell. Every white cell must be lit.
✓ All lit ✗ Dark cells No bulb may shine on another bulb.
✗ They see each other A number on a black cell says how many bulbs are right beside it (not diagonally).
✓ 2 bulbs ✗ Not 1 bulb
Example: Lights On
Playing here: Tap a white cell for a bulb, again for a dot (no bulb), again to clear. Lit cells glow.