Summary
The goal is to earn points by removing lines of at least five same-colored balls on the 9x9 board.

On each turn, three tiles randomly chosen out of seven colors are added to the board. The next three balls are always shown underneath the board.

The game is over when the board gets full.

Move balls
You can move one ball per turn by one click on the tile followed by another click on the desired destination.

A ball can be moved to any vacant spot reachable along a clear path (a chain of horizontally or vertically adjacent empty cells from the tile to the target).

Lines
Try to create lines of at least five same-colored balls horizontally, vertically, or diagonally. When lines are formed, balls in the lines immediately disappear from the board, and you get 10+ points along with another opportunity to move a ball. Automatically formed lines will also be removed, though they do not contribute to your score.