Loop Sort level guide
Loop Sort Level 551 Walkthrough
Loop Sort Level 551 wraps a clockwise rectangle between an upper shutter and a lower-right shutter. Clear the exposed brown, gray, and green opening, use the yellow key in the six-source top bank, then route the late pink, orange, gray, and red faces from the uncovered lower bank.
If the player asks you to sign in, open the video on YouTube instead.
How to Solve Loop Sort Level 551 — Full Solution
- Tap brown at initial lower-left source B1.
- Tap gray at B1 after brown leaves.
- Tap green from the small initial upper-right source.
- Tap light blue at T1 after the upper shutter retracts.
- Tap brown at T6.
- Tap green at T6 when brown turns over.
- Tap red at B3.
- Tap light blue at B3 after red leaves.
- Tap orange at T2.
- Tap pink at T2 when its covered layer flips.
- Tap green at T3.
- Tap yellow at T3 when green leaves.
- Tap gray at T4.
- Tap the yellow key face at T4 to retract the lower-right shutter.
- Tap green at T4 after the key is collected.
- Tap orange at T5.
- Tap red at T5 when orange turns over.
- Tap pink at newly exposed B4.
- Tap gray at B5.
- Tap light blue at B2.
- Tap dark blue at B3 when its separate receiver reaches the entry.
- Tap the last pink face at T2 and confirm T2 checks.
- Tap the last red face at B6 and confirm B6 checks.
- Tap the last orange face at T5 and verify the completion logo.
Colors in this level:
Brown, Gray, Green, Light blue, Blue, Red, Orange, Pink, Yellow
Common Mistakes to Avoid
- Treating the chained yellow-key stack as an ordinary yellow source.
- Sending dark blue toward the light-blue receiver path.
- Expecting the lower-right shutter to open before the yellow key is collected.
Quick Tips for Loop Sort Level 551 (quick clues)
- Use the first shutter reveal to number the six top sources from left to right.
- Collect the yellow key before planning any tap from the lower-right covered bank.
- Confirm each exhausted source becomes a purple check instead of relying on the HUD fraction.
Board notes 5 details
- Layout
- After the first shutter retracts, number upper sources T1-T6 and lower sources B1-B6 from left to right; T4 carries the chained yellow key that releases lower sources B4-B6.
- Goal
- Follow each visible source turnover, collect the yellow key, retract both shutters, and convert every upper and lower source into a purple check before the completion logo.
- Opening
- Release lower-left brown and gray, use green from the small upper-right stack, then work the far-left light-blue and exposed top green faces after the first shutter opens.
- Danger Zone
- Light blue and dark blue use different receivers, while the lower-right pink/orange/gray/red layers remain unavailable until the yellow key face has been collected.
- Mechanics
- Question-mark covers reveal real colors and the key controls the second shutter; the changing HUD fraction reflects simultaneous circulating and received cubes rather than moves.
Frequently Asked Questions
What unlocks the lower-right shutter in Level 551?
The visible yellow key face in the top bank must be routed first; its collection retracts the shutter and exposes the late lower sources.
Why must the yellow key be collected before tapping the lower-right bank?
The lower-right shutter stays locked until the yellow key face from the top bank is routed; any attempt to reach B4-B6 before collection has no effect.