Water sort,
one color per tube.
Lift a tube and pour its top color onto a matching one — or into an empty tube. Two spare tubes are your working space; reunite every color in as few pours as you can.
- Moves
- 0
- Best
- —
Tap a tube to lift it · tap another to pour
How Water Sort works,
in short.
- Step 01
A pour needs an empty tube or a matching top color.
Each tube holds four units of liquid. A tube takes a pour only when it is empty or its top color matches the top color of the tube you are pouring from — and only as much liquid as fits will transfer.
- Step 02
Tap a tube to lift it, tap another to pour.
The first tap lifts a tube; tapping it again puts it back down. Tap a second tube while one is lifted and the whole run of the top color pours across — two stacked units of one color always move together. An impossible pour just shakes the receiving tube.
- Step 03
Finish with every tube one color, or empty.
You win when each color sits complete in its own tube, four units deep. The two empty tubes are working space, not part of the goal — park a color there when nothing matches, and undo freely if you pour yourself into a corner.