What do the starred blocks do in Block Out Level 743?

They are movable blue blocks and leave through blue gates; their irregular footprints are the real routing challenge.

Which reveal move matters most?

After the blue 2-cover opens, send the revealed green vertical through the top green gate before other blocks refill the seam.

Block Out level guide

expert 6 colors

Level 743 routes irregular starred-blue blocks around a blue 2-cover and green 6-cover; keep their shared seam free for both reveals.

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

Send the top purple piece upward and the exposed green vertical through the top green gate, then clear yellow and cyan edge blocks.
Separate the red and yellow L shapes and route starred blue pieces to blue gates without sealing the cover seam.
At blue-cover count 2, send the short cyan horizontal through the right cyan gate; its two-cell exit counts 2 to 1 to 0, then send the revealed green vertical through the top green gate.
Clear the left reveal's red blocks, yellow pieces, cyan pieces, and starred-blue clusters through their matching perimeter gates.
Keep the purple L low while the green cover falls toward 1, preserving the top lane for the remaining green L.
Send the green L through the top green gate for green 1 to 0; pull the small cyan square out first, then the red corner, tall yellow bar, and cyan L.
Send cyan to a blue gate, yellow to the yellow gate, red to the red gate, and drain ordinary green/purple blocks.
Finish the remaining starred-blue bars through the left, right, and bottom blue gates until the board is empty.

Colors in this level:

Blue, Cyan, Green, Red, Yellow, Purple

Treating the white stars as a separate gate color instead of reading the blue footprint.
Parking a long starred block on the seam before the framed green bar crosses.

Match starred pieces to blue gates and judge their occupied cells, not their decoration.
Send the revealed green vertical through the top green gate first after the blue-cover reveal.

Board notes 5 details

Layout: Ordinary yellow, green, purple, red, and cyan pieces share the upper strip with many blue shapes marked by white stars. Blue 2 and green 6 covers fill the lower half.
Goal: Clear the upper strip, open the blue cover, send its revealed green vertical through the top green gate first, then reduce the green cover and drain the final right wave.
Opening: Exit the top purple and green pieces, separate the red/yellow L shapes, and route starred blue clusters to blue gates by their full footprints.
Danger Zone: A long starred-blue bar across the seam blocks the left reveal and prevents the framed green horizontal from crossing before the green cover opens.
Mechanics: Star-marked blue shapes behave as normal blue blocks but have large footprints; sequential 2 and 6 covers expose two dense waves.

What do the starred blocks do in Block Out Level 743?
They are movable blue blocks and leave through blue gates; their irregular footprints are the real routing challenge.
Which reveal move matters most?
After the blue 2-cover opens, send the revealed green vertical through the top green gate before other blocks refill the seam.