Loop Sort level guide
Loop Sort Level 121 Walkthrough
Loop Sort Level 121 is a tall seven-group rounded loop with three blue-glass reveal panels. Run the lowest brown first, stagger blue and purple through the long right rail, then follow the checked trucks into the late red cleanup.
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How to Solve Loop Sort Level 121 — Full Solution
- Tap the lowest horizontal centre truck for brown and let the train complete the right rail, top crossover, left drop, and lower return.
- Tap the next visible blue cargo from that lower horizontal stack, then release its exposed purple layer on a separate full circuit.
- Use the lower-left vertical truck for green and then orange only after the blue/purple traffic has left the right rail.
- Work through the upper-left blue/gray truck and the centre horizontal blue/white, yellow/red, and red/yellow trucks as their matching receivers open.
- Route the revealed gray, white, pink, and orange cargo from the checked centre and lower trucks one colour at a time, waiting for each check mark.
- Tap the remaining red-loaded lowest horizontal truck for the final red pass and wait for the last red cargo to check the board.
Colors in this level:
Blue, Gray, Brown, White, Yellow, Red, Purple, Green, Orange, Pink
Common Mistakes to Avoid
- Launching another long train while the preceding colour is still on the right vertical.
- Treating a blue-glass panel or the changing HUD fraction as a usable move signal.
Quick Tips for Loop Sort Level 121 (spoiler-free)
- Let brown clear the lower-right corner before sending blue.
- Keep blue and purple on separate clockwise passes through the right rail.
- Inspect every check mark and glass-panel reveal before the next tap.
Board notes 5 details
- Layout
- A tall rounded-rectangle loop carries cargo clockwise from the lower-right corner up the right rail, across the top, down the left side, and back along the bottom. The upper-left vertical truck exposes blue and gray; five centre horizontal trucks expose brown/blue, blue/white, yellow/red, red/yellow, and purple/brown; three blue-glass panels cover the next layers; the lower-left vertical truck exposes green and orange.
- Goal
- Complete seven target groups. Checked trucks and blue-glass panels reveal later gray, white, pink, green, orange, brown, and red cargo instead of leaving the board empty.
- Opening
- Release brown from the lowest horizontal centre truck first. Let it complete the lower-right corner and the full clockwise circuit, then send the next blue and purple layers separately before opening the lower-left green/orange truck.
- Danger Zone
- The right vertical and top-right turn form the shared queue. Releasing a second long train while brown, blue, or purple is still there obscures the next matching receiver and can trap the reveal phase behind the glass panels.
- Mechanics
- This is a layered reveal board: each checked truck exposes a new colour or a covered slot, and the newly visible slot—not the original stack order—determines the next safe tap.
Frequently Asked Questions
What is the safest first tap in Loop Sort Level 121?
Use the visible brown in the lowest horizontal centre truck and let it complete the clockwise circuit before opening the next colour.
What do the blue-glass panels mean?
They are covered cargo that becomes readable after nearby trucks check off. Inspect the revealed slot before choosing the next truck.