Sort colored balls into tubes so that each tube contains only one color. A satisfying puzzle of planning and sequencing.
How to play
Tap a tube to pick up the top ball, then tap another tube to drop it. You can only place a ball onto an empty tube or onto the same color. Plan ahead: wrong moves can block all progress.
Objective
Fill each tube with a single color to complete the level.
Strategy tips
Always keep at least one empty tube free as a buffer: it's your only way to break a deadlock when two needed colors are buried under each other.
Work on one color at a time. Move all balls of that color to the same tube before touching anything else: partial consolidation wastes moves.
Before making any move, check whether it will trap a color. If the ball you're placing will bury a different color below it, find an alternative first.