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Galaxies

Split the grid into symmetric galaxies, one around each dot.

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How to play

  • Draw borders along the grid lines to split the grid into regions (galaxies), each holding exactly one dot.
  • Each region looks the same after a half turn (180°) about its dot: the dot is its centre.
  • A dot may sit in a cell, on the line between two cells, or where four cells meet; no border passes through a dot.
  • A finished region takes a pastel colour by its size, so regions of the same size match.

One Dot in Every Region

Borders split the grid into regions, and every region holds exactly one dot. A dot may sit in a cell, on the line between two cells, or where four cells meet; no border passes through it.

✓ Correct Seven regions, one dot each: dots in a cell, on a line, and on the line inside the S-shape.
✗ Wrong Two dots in one region. Each dot needs a region of its own.
✗ Wrong A border through the dot at the bottom left. The dot's two cells must stay in one region.

Half-Turn Symmetry

Turn a region half a turn (180°) about its dot and it lands exactly on itself: the dot is the region's centre.

✓ Correct The Z-shape turns onto itself about its dot, and so do the two dominoes about theirs.
✗ Wrong Turned about its dot, this L would cover the bottom-right cell, not the top-left one.
✗ Wrong The dot sits in one cell of its region, not at its centre: a two-cell region has its dot on the line between them.
A small Galaxies, solved.

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