How do I avoid the verification timeout in Level 42?

Drag the arrow from the left edge to the far-right end in one quick, uninterrupted swipe.

What do the three lamps above the door mean?

They track the slider check; all three must stay green for the chains to release.

Move right and jump into the formerly chained pink door beneath the three green lamps.

Brain Riddle: Tricky Box level guide

medium 4 colors

Sweep the verification arrow to the right before its timer expires, keep all three status lamps green, and jump Boxy into the unlocked chained door.

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Ignore the ordinary door on the far left and focus on the verification panel above Boxy.
Press the arrow tab at the left end of the `Slide to verify` bar.
Drag the tab quickly and continuously to the bar's far-right end until all three lamps turn green.
If the verification times out, wait for the arrow to reset and repeat the same drag faster.
When the right door loses its chains, hold right to bring Boxy to that doorway.
Tap jump at the threshold, enter the purple portal, and confirm the Congratulations overlay.

Colors in this level:

Pink, Gray, Green, Yellow

Sliding slowly enough for the verification timer to expire.
Walking into the left-hand door before solving the wall panel.
Treating the `Verifying...` spinner as completion and failing to move Boxy into the unlocked exit.

Board notes 5 details

Layout: Boxy stands below a wall-sized object collage with a `Slide to verify` bar; a normal door is on the left, while three gray lamps and a chain-wrapped pink door occupy the right.
Goal: Pass the timed slider check so the three lamps stay green and the locked right-hand portal opens for Boxy.
Opening: Grab the arrow tab at the slider's left end and drag it to the far right in one fast continuous gesture.
Danger Zone: A slow drag can illuminate the lamps but still trigger `Verification timed out, please retry!`, forcing the panel and lock to reset.
Mechanics: A captcha-like UI gesture directly controls three verification lamps and removes the chains from the actual platform exit.

How do I avoid the verification timeout in Level 42?
Drag the arrow from the left edge to the far-right end in one quick, uninterrupted swipe.
What do the three lamps above the door mean?
They track the slider check; all three must stay green for the chains to release.
Where should Boxy go after verification succeeds?
Move right and jump into the formerly chained pink door beneath the three green lamps.