Coral Seas

Draw black sea walls to isolate numbered coral islands without trapping pools of water.

Created by @min

Category: Cozy & Satisfying

How to play

Tap cells to color them black (sea) or white (island). Each numbered cell starts a white island region.
Each island's white region must contain exactly that many cells total.
All black cells must form one continuous sea (no separate black islands).
No white cells can be completely surrounded by black (no pools allowed).