What opens the upper cover in Block Out Level 644?

The small pink L exits through the left pink gate while the cover shows 1, taking it to 0 and revealing framed pink, green, orange and blue pieces.

What opens the tall right cover?

A cyan vertical exits through the top cyan gate at 1, revealing the dense lower-right grid; slide its upper green horizontal left first.

Block Out level guide

expert 8 colors

Level 644 is a HARD three-cover board marked 2, 13 and 6; keep the shelf above them clear so each pink/cyan trigger can expose the next grid.

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Clear accessible red and cyan, then circulate purple/orange inside the upper-left pocket while protecting the bottom green gate.
Send the small pink L through the left pink gate while the top cover reads 1; it reaches 0 and reveals pink/green/orange L shapes plus a framed blue square. Move the large pink L left first.
Drain the upper reveal through left/top gates and clear the shelf for the cyan vertical.
Send the cyan vertical through the top cyan gate while the tall cover reads 1; it reaches 0 and reveals the lower-right yellow/pink/green/cyan/orange grid. Slide the new upper green horizontal left first.
Work the lower-right grid upward in color groups and keep every L's turning row unobstructed.
Send the final pink rectangle through the left pink gate to take the lower cover from 1 to 0; move the revealed green L upward first.
Clear cyan, send the green square through the left green gate around 26 seconds, and take the orange rectangle through the right orange gate around 24 seconds; finish as the yellow square and green L clear from the left-side gates in the final near-simultaneous sequence.

Colors in this level:

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

Leaving the large pink L across the shelf before the cyan vertical can reach the top gate.
Pulling a lower-right L upward before its full turn is clear, sealing the pink cover's route.

Board notes 5 details

Layout: Purple 2 at upper-right, purple 13 down the right and pink 6 at lower-left occupy most of the rectangle. Cyan/red/purple/pink/orange pieces share a small upper-left pocket with left and bottom gates.
Goal: Open the upper cover with a pink L, the tall right cover with a cyan vertical, and the lower pink cover with a pink rectangle, clearing each revealed wave away from the transfer shelf.
Opening: Remove the accessible red through the left gate, clear cyan upward, move purple left and rotate orange/pink L shapes through the upper pocket.
Danger Zone: The shelf immediately over the covers is the only route between all three waves; a large pink L or orange zigzag parked there blocks the next trigger.
Mechanics: Three covers marked 2, 13 and 6 open independently and reveal an upper framed cluster, a dense lower-right grid and a lower-left green/cyan/yellow maze.

What opens the upper cover in Block Out Level 644?
The small pink L exits through the left pink gate while the cover shows 1, taking it to 0 and revealing framed pink, green, orange and blue pieces.
What opens the tall right cover?
A cyan vertical exits through the top cyan gate at 1, revealing the dense lower-right grid; slide its upper green horizontal left first.