Read the top layers
Only exposed top segments can move. Look for matching exposed colors and keep at least one flexible destination whenever possible.
Make a legal pour
Tap a source tube, then an empty tube or a tube whose top color matches. SpillD moves the legal run of matching segments while respecting tube capacity.
Preserve working space
An empty tube is a planning tool. Filling every gap too early can trap colors under incompatible layers, so consolidate deliberately.
Learn new modifiers
Later chapters introduce locked tubes, frozen segments, rainbow wilds, and sealed tubes. Each mechanic receives an in-game introduction before it matters.
Finish the board
The puzzle is complete when every non-empty tube contains a single color.