Pour Order · Endless · Top score · All-time

• Tap or click the start screen: the first rack appears, three colors mixed through five test tubes, with a minute on its clock.
• Fill a tube with four layers of one color to seal it. Seal every color to sort the rack: the time left on its clock becomes points, and the next, harder rack slides in with a fresh clock.
• Out of pours? Use Undo (2 seconds), Restart (5 seconds) or tap the dashed spare tube to add an empty one (10 seconds).

• Before each pour, look at what it uncovers. The best pour exposes a color you can move again straight away, so your pours chain together.
• Save the spare tube for the seven-color racks. Ten seconds is a lot on a short clock, but it is far cheaper than a long dead end.
• Speed pays twice: every second left on a rack's clock is worth 60 points, and the clocks only get shorter, so a clean, quick rack now sets you up for the next.

All-time keeps each player’s best since the board opened. This week starts again every Monday at midnight New York time.

Equal scores share a place, and the run finished first is listed first.

A run records only your inputs. Our server plays them again with the same game code, and only a score the replay matches is verified. A person also checks the top 10 scores.

The board lists every player, guests under their generated name. Sign in with Google or Apple from a result to keep your scores and pick your own name. Bots, scripts and other automated or assisted play are not allowed (see our terms of use).