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Play Sun & Moon online: rules and tips

Fill the grid with suns and moons. Explore the rules below, then practise Sun & Moon in the HubbardGames Library.

An account is needed to play and save your progress.

Fill the grid with suns and moons.

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.

Find your next favourite

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