Loop Sort level guide
Loop Sort Level 423 Walkthrough
Loop Sort Level 423 is marked Hard and begins with four lower sources while a broad red curtain hides the entire upper bank. Clear orange, yellow, light blue, pink, and red in isolated waves before resolving the late green, gray, brown, blue, and purple reveals.
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How to Solve Loop Sort Level 423 — Full Solution
- Release orange from the lower-left stack and wait for it to clear the left bend.
- Route yellow and light blue separately, then send pink after the bottom straight opens.
- Clear the exposed right-side red layers and wait for the broad curtain to retract.
- On the revealed upper bank, route green and red first, followed by blue when the left side is clear.
- Clear later gray and brown before returning to the remaining green, blue, and purple stacks.
- Send the final purple wave into an empty loop and confirm all five groups complete.
Colors in this level:
Orange, Light blue, Yellow, Blue, Pink, Red, Green, Gray, Brown, Purple
Common Mistakes to Avoid
- Releasing yellow while orange still occupies the left bend.
- Mixing pink and red on the restricted Hard board.
- Assuming the curtain reveal is the final reveal state of the upper stacks.
Quick Tips for Loop Sort Level 423 (quick clues)
- Let orange clear the left bend before releasing yellow.
- Keep pink and red in separate passes.
- Re-plan from the visible upper cargo after the curtain opens.
Board notes 5 details
- Layout
- Four visible lower stacks feed a compact rectangular loop while one broad red curtain conceals a six-position upper bank.
- Goal
- Complete five active groups and empty both the opening lower sources and every source revealed above the loop.
- Opening
- Start with lower-left orange, then route yellow and light blue separately before introducing pink and red.
- Danger Zone
- The Hard board has little free group space, and newly revealed green or red can collide with blue or pink at the left bend.
- Mechanics
- A full-width curtain transforms the four-source opening into a larger upper bank with additional covered layers.
Frequently Asked Questions
Why is Level 423 marked Hard?
Most sources begin hidden behind one broad curtain while the board supports only a narrow set of active color groups.
Which lower-left color opens the curtained board?
The verified walkthrough begins by releasing orange from the lower-left source.