The night sky (in other words, the puzzle grid) is covered with 180-degree rotationally symmetrical galaxies and at the centre of each galaxy is a single dot. A combination of logic and spatial awareness is needed to map out the edges of these galaxies and the night’s sky.
This puzzle can range from very easy, to very challenging. A tip for solvers: remember that the whole of the night sky is covered in galaxies (no black holes here); therefore all the cells in the grid need to be part of a galaxy.
Galaxies is based on an original Nikoli picture puzzle called Tentai Show, where regions can be shaded to the colour of the dot to reveal a picture. Nikoli published the first collection of these puzzles in October 2006.
The entire night sky (the grid) is covered with 180-degree rotationally symmetrical galaxies. One dot marks the centre of each galaxy and no galaxies overlap. Use the lines of the matrix to mark out the borders of the galaxies.