Why does the Level 7 board look different after each phase?

The connected sections collapse and re-present different faces as groups clear; follow the target row through those changes.

Can I reuse a buffer slot after the target changes?

Only if it is visibly empty. The video shows purple first and later red/blue pieces occupying slots across the same run.

Cube Tap Sort level guide

hard 10 colors

Clear the tall two-section block by following the target row from green and lime through pink, purple, and the final blue/cyan chain.

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

Confirm green star 4 and lime square 6 and note the four empty buffer cells.
Clear the exposed green and lime groups, then follow the target row into lavender/yellow.
Continue through orange/yellow and then pink/purple as the block collapses.
After purple enters the buffer, preserve the remaining slots; red and blue pieces later occupy additional cells.
Clear the remaining pink, cyan, and blue faces and wait for the final target checkmark.

Colors in this level:

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

Use the active target boxes to choose the next group, not the largest color cluster.
Expect the two connected sections to narrow into a diagonal chain.
Protect open buffer slots after purple, red, and blue pieces appear there.

Board notes 5 details

Layout: The opening board is a tall offset stack made from two connected cube sections. Green star 4 and lime square 6 are active, with four empty buffer cells.
Goal: Advance through the lavender/yellow, orange/yellow, pink/purple, and blue/cyan target phases as the starting stack collapses into a diagonal chain.
Opening: Release exposed green star and lime square cubes first, then follow the target row after the first collapse.
Danger Zone: A purple cube enters the buffer and later red and blue cubes are also visible in slots. Occupied slots persist through target changes; the video shows no loss threshold.
Mechanics: This is a long target-chain level with automatic board re-presentation during play, not a new manual rotation tutorial.

Why does the Level 7 board look different after each phase?
The connected sections collapse and re-present different faces as groups clear; follow the target row through those changes.
Can I reuse a buffer slot after the target changes?
Only if it is visibly empty. The video shows purple first and later red/blue pieces occupying slots across the same run.