Tube Sort
Sort liquids by pouring between tubes
Tube Sort is a color-sorting puzzle where you pour liquids between tubes to get each tube filled with a single color. It's simple to learn but requires planning to solve efficiently.
Rules
Click a tube to select it, then click another to pour. Liquid pours from the top of one tube to another.
You can only pour onto the same color or into an empty tube. You can't pour red onto blue.
Each tube holds 4 units of liquid. You can't overfill a tube.
Get each tube filled with exactly one color (or completely empty). All colors must be sorted!
Strategies & Tips
Use Empty Tubes Wisely
Empty tubes are valuable because they let you move any color. Don't fill them up too quickly; keep options open.
Plan Ahead
Before pouring, think 2-3 moves ahead. Will this pour help or create a worse situation?
Free Trapped Colors
Focus on freeing colors that are buried under other colors. Sometimes you need to temporarily make things messier.
Complete Tubes When Possible
A fully sorted tube is one less thing to manage. When you can complete a tube, consider doing it.