Spiral galaxies is a region based logic puzzle where the grid is divided up into smaller regions.


The objective is to divide the whole grid into smaller regions, "galaxies", subject to the following rules:

  1. The grid is divided up into regions along the grid lines.
  2. Each region must have rotational symmetry and must contain exactly one circle, which is at the centre of its rotational symmertry.


A standard 10x10 spiral galaxies and its solution.

Spiral Galaxies Example

Spiral Galaxies Solution