How to play Star Battle
- Place one star in every row, every column and every outlined region.
- Stars never touch each other, not even diagonally.
- Mark squares you know are empty; every puzzle has one solution.
Tap once for a mark, twice for a star. Drag to mark several squares. Keys: ←↑→↓ move, S star, X mark, ⌫ clear.
Hints explain one step from your current board. Reveal fills in what a hint proved and is counted separately.