Why does the board still look gray after the colored groups clear?

The rails are the remaining structural sections. They become the final target phase after the inner colored rows have been removed.

Should I tap every matching color visible between the rails?

No. Use the current target row and exposure state; a matching rear face can remain blocked by a horizontal rail.

Cube Tap Sort level guide

hard 12 colors

Open Level 26's long gray rail structure from gray and pink, then clear the colored rows and final pale gray bars.

If the player asks you to sign in, open the video on YouTube instead.

Between the long rails, clear the exposed gray 1 and pink 7 groups.
After the first automatic rail shift, follow the yellow/red and cyan/green rows that open inside the frame.
As the middle rows detach, take purple from the inner rail gap and blue from the newly open horizontal row; a rear match behind a bar is still blocked.
When colored pieces separate, keep a free buffer slot for the next named row instead of storing a matching cube that remains behind a rail.
When gray becomes active again, clear the pale gray/ice bars along the outer rails, then wait for WELL DONE.

Colors in this level:

Gray, Pink, Yellow, Red, Cyan, Green, Purple, Blue, Peach, Orange, Lavender, Lime

Start with gray 1 and pink 7 from the exposed row between the long rails.
After the rails settle automatically, read the refreshed yellow/red and cyan/green boxes before choosing a row.
Leave the remaining structural rails alone until gray is the active target phase.

Board notes 5 details

Layout: The opening board is a long gray rail structure with colored faces between horizontal bars. Gray 1 and pink 7 are active, and the buffer row is empty.
Goal: Advance through yellow, red, cyan, green, purple, and blue before clearing the final pale gray/ice bars.
Opening: Clear the exposed gray 1 and pink 7 groups inside the rail structure.
Danger Zone: Gray rails can look like the active color while still serving as structural cover; detached colored rows can also occupy the buffer.
Mechanics: Several horizontal rail sections re-present automatically and collapse into a pale gray remnant as target groups clear; the source shows no new manual swipe. Gray is both a target color and structural cover.

Why does the board still look gray after the colored groups clear?
The rails are the remaining structural sections. They become the final target phase after the inner colored rows have been removed.
Should I tap every matching color visible between the rails?
No. Use the current target row and exposure state; a matching rear face can remain blocked by a horizontal rail.