This will erase all your progress on this puzzle.
Place exactly 1 star per row, column, and bold region on each board. Stars cannot touch each other, even diagonally.
Looking for solving techniques? See How to Solve for a guide.
Puzzles with more than one star per row/column/region open up extra techniques — see How to Solve, Part 2 for a guide.
The boards always match — changes to one board automatically take effect on too.
Dots are for your own bookkeeping — mark cells you've worked out can't hold a star.
Use the Book button in the top bar to browse available puzzle collections — each book shows a description to help you choose.
Use the Browse Puzzles button to see progress on the current book.
Use the gear icon to edit settings like dark mode and timer visibility.
This game is open source. View the code on GitHub.