What opens the blue 1-cover?

The cyan vertical exits downward through the bottom cyan gate.

What opens orange 3 and what moves first afterward?

The right yellow vertical exits through the right yellow gate; the newly revealed right green vertical then moves downward first.

Block Out level guide

expert 8 colors

Level 640 opens blue 1 and orange 3 through exact gates, releases a keyed chain wave, and finishes with a purple horizontal at the left purple gate.

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Clear exposed lower cyan and red while keeping the green/orange and yellow/pink framed L footprints in separate corners.
With blue 1 at 1, send the cyan vertical through the bottom cyan gate; the cover reaches 0 and exposes a fresh row.
Move the newly revealed yellow 2-by-2 downward first, then clear loose red, cyan, purple, and yellow without filling the waist.
With orange 3 at 1, send the right yellow vertical through the right yellow gate; the cover reaches 0 and reveals the upper keyed wave.
Move the newly revealed right green vertical downward first, then clear edge-aligned pink, cyan, green, yellow, and orange as the side locks count down.
Collect both key-bearing orange blocks and release the chain-marked blue center while preserving the waist.
Carry one framed L completely through center before moving the other, then remove long pink, green, and orange columns through open gates.
Drain upper blocks into the lower chamber and clear yellow, orange, green, red, pink, and cyan in complete groups.
Send the late blue L through the bottom cyan gate while bringing the purple horizontal to the left approach.
Send the purple horizontal through the left purple gate as the final object; the verified board is empty.

Colors in this level:

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

Moving both framed L shapes into the chain-marked waist at once.
Calling the blue L the finish instead of the later purple horizontal at the left gate.

Execute each cover's newly revealed first move before rearranging framed L pieces.
Carry one framed L completely through the waist before starting the other.

Board notes 5 details

Layout: Orange 3 fills the upper board between paired side locks, while blue 1 sits above a starter with two oversized framed L footprints.
Goal: Open blue 1 with the bottom cyan exit, open orange 3 with the right yellow exit, then clear keys, chain, side locks, and both framed L crossings.
Opening: Clear lower cyan/red while preserving both framed corners, then send the cyan vertical through the bottom cyan gate with blue 1 at 1.
Danger Zone: The chain-marked waist is the only cross-board route; two framed footprints or a tall column there halt both side locks.
Mechanics: Blue 1 reveals a yellow 2-by-2 moved downward first; orange 3 reveals a right green vertical moved downward first; the purple horizontal exits last at left.

What opens the blue 1-cover?
The cyan vertical exits downward through the bottom cyan gate.
What opens orange 3 and what moves first afterward?
The right yellow vertical exits through the right yellow gate; the newly revealed right green vertical then moves downward first.