Successfully align four shapes of your color before anyone else, either in a row (including diagonals) or in a column (stacked).
Each candy consists of two shapes. There are three types of shapes: round, square, and star.
Each shape comes in two sizes: small or large. The small shapes can fit inside the large ones; the large ones can cover the small ones.
On your turn, place one of your candies:
in an empty space on the board
inside or on top of another candy already placed on the board.
Only candies of the same shape fit together: a circle inside a circle, a square inside a square, a star inside a star.
You can block an opponent by covering one of their small shapes on the board with one of your large ones. Only use visible shapes to count your lines of four consecutive shapes!
The game ends when one of you manages to make a row or column of four shapes of your color, or when no one has any more candies to place.