Place stars so that:
- every row and every column has the shown number of stars,
- every outlined region has that number too,
- no two stars touch, not even diagonally.
A star rules out the eight cells around it. In a 1-star puzzle it also rules out the rest of its row, column and region.
Every puzzle has exactly one solution, and you never need to guess. Cells that can't hold a star because of the stars you placed get a light X by themselves. Mark other cells with your own X once you know they can't hold a star.
Mouse and touch
Tap a cell to cycle empty → X → star. Drag from an empty cell to mark many cells. Right-click toggles an X.
Keyboard
- ←↑→↓
- Move
- S / Enter
- Star
- X
- Mark X
- Space
- Cycle
- Del
- Clear cell
- H
- Hint
- Ctrl+Z / Y
- Undo / redo
Ranked play
With a free account your times go on the leaderboard. A puzzle counts when the server picked it and you used no hints. You can also challenge a friend by their @name.
Learn more