How to play Sun & Moon
- Every row and column needs three suns and three moons.
- Never three of the same symbol in a row or column.
- An '=' between two cells means they match; an '×' means they differ.
- Tap a cell to cycle sun, moon, empty. Broken rules turn red.
Your first useful move
Look for two identical symbols next to each other: a third would break the no-three rule. Then check the row and column totals to see which symbol is still needed.
Playing on HubbardGames
Open a Library board to find this game’s controls. The how-to-play button keeps the rules close by while you solve, so you can check a detail without leaving the puzzle.
Choose your difficulty
The Library shows the available difficulty levels for this game. Choose a board that suits you, then return for another when you want more practice.
Can I practise without affecting the league?
Yes. Choose a puzzle from the Library to practise this game. Library practice does not add league points. You can return to an unfinished puzzle later.