Choose a vial, then another. Pour the maximal matching top-color run until the destination is full.
Pour only onto the same color or into an empty vial. Finish with one full vial per color.
Use arrows and Enter/Space, or tap a vial. U undoes; R asks to restart; Escape pauses or closes a panel.
Undo and successful hints mark the attempt assisted: one star and no ranked score. Restart is free; the displayed target is a benchmark, not a promised minimum.
Daily uses UTC. Its reward is paid once per date; expired attempts and Practice are unranked.
Your previous best stays safe.