? How to play
Each tube has mixed colored balls. The goal is to leave each tube with a single color.
- Press a tube to choose its top ball.
- Press another tube to move it there. In Strict mode, it can only be placed on an empty tube or on a ball of the same color; in Free mode, you can place it in any tube that has space.
- Press the same tube again to undo the selection.
- You can restart the level if you get stuck, without it counting as an error.
