Another naming problem. Another one where I’m not sure if it already exists. Another one where I can suggest a change for future use – specify how many cells of the region make up the island. It can probably be taken as a Nurikabe/LITS variant anyway for now.
1. Each region must have an island of size 4 cells. These 4 cells can occupy 2×2 regions too.
2. Draw a single connected area around these islands, such that the islands from different regions don’t touch each other(diagonal touching is allowed).
3. This area cannot occupy 2×2 regions fully.
Rated : Medium for starters.