Loop Sort level guide
Loop Sort Level 399 Hard Level Walkthrough
SUPER HARD Level 399 combines a large curtain reveal with blue and green locks around one narrow rectangle. Open with bottom-center brown then green, unlock one upper phase at a time, and finish with inner orange, far-left gray, and top-center pink.
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How to Solve Loop Sort Level 399 — Full Solution
- Release brown from the bottom-center source into the exposed inner brown receiver.
- Release green from that same source after brown clears, then continue bottom-source matches until the red curtain retracts.
- Route the newly revealed green, pink, orange, and red matches before adding an unlocked upper phase.
- Route the first exposed key to its matching lock, wait for the key wave to clear, and drain the newly available bay.
- Route the second key to the remaining lock and work the upper green, yellow, red, and purple layers separately.
- Release the remaining inner orange source, then gray from the revealed far-left inner bay.
- Release pink last from the top-center vertical source; the final absorption checks the board and returns the HUD to 0/5.
Colors in this level:
Brown, Light blue, Pink, Green, Orange, Red, Yellow, Purple, Gray
Common Mistakes to Avoid
- Starting with light blue even though bottom-center brown is the first release and green is second.
- Routing the second key before the first unlocked bay is empty.
- Calling gray the final color when the top-center pink source releases after it.
- Reading the changing `0/5` HUD fraction as five completed groups or a move limit.
Quick Tips for Loop Sort Level 399 (quick clues)
- Clear the curtain phase before feeding newly unlocked cargo.
- Finish the first unlocked bay before routing the second key.
- Keep the late orange-gray-pink sequence for an almost empty loop.
Board notes 5 details
- Layout
- A red curtain hides inner bays inside a rectangular loop; blue and green locks block upper bays, and the bottom-center source exposes brown with green behind it.
- Goal
- Match sources to receivers, retract the curtain, route both keys, and check every remaining bay after the top-center pink wave.
- Opening
- Release brown from the bottom-center source into the exposed inner brown receiver, then release green from that same source.
- Danger Zone
- Routing the second key or newly unlocked cargo while the first upper phase occupies the top edge hides the next reveal and removes matching space.
- Mechanics
- The curtain is an information barrier and each key removes only its matching blue or green lock before the upper bay becomes available.
Frequently Asked Questions
Why is Loop Sort Level 399 marked SUPER HARD?
A curtain reveal and two locked upper phases add new source and receiver dependencies to one narrow loop.
Why not route the second key as soon as it appears?
Routing the second key or newly unlocked cargo while the first upper phase occupies the top edge hides the next reveal and removes matching space.
Which colors finish the level?
Release inner orange, then far-left inner gray, and finish with pink from the top-center source.