How to play star battle

Choose a size. Select Star and tap a cell to place a star; tap it again to remove it.
Select Dot to mark cells that cannot hold a star. A star rules out its whole row, column, region, and the eight cells around it.
When every row, column, and region has exactly one star and none touch, the puzzle is solved.

Every puzzle is made in your browser and checked to have exactly one solution, so it can always be solved by logic without guessing.

Start with small regions: a region that fits in one row or column decides where that row or column’s star goes.