Marble Sort Level 172 — Walkthrough and Solution

Level 172 is the red bait and the locked right column. The front-row Reds are decoys; the real task is digging out Browns to unlock the left side before the belt jams.

Level172
DifficultyMedium
Priority routeGreen → Pink
Watch forRed

▶ Video walkthrough of Marble Sort level 172, then the step-by-step below.

⚡ Quick clear

Green → Pink. The Red is the bait. Leave it until its box is ready.

Marble Sort Level 172 is a classic bait-and-switch puzzle. The upper tray displays Pink, Red, Brown, and Green marbles, but the bottom Boxes demand Brown, Green, Brown, and Pink. The key is to ignore the Red marbles initially and focus on extracting the hidden Browns to trigger the left column's unlock mechanism.

The board has two major obstacles: blue barrier blocks on the far left with a countdown of 2, and a Lock and Key setup on the far right. The key is buried under Green and Yellow marbles, while the center holds a grid of grey Mystery Boxes. The bottom row of Boxes from left to right demands Brown, Green, Brown, and Pink, with a locked Purple Box on the far right.

Marble Sort Level 172 Walkthrough

The bottom Boxes in the active row require, from left to right: Brown, Green, Brown, and Pink. The Top Tray's front row shows Pink, Red, Red, Pink, and Green. The Browns are trapped behind the Red marbles, which are bait because there is no Red Box to fill.

The main trap is that dropping both Red sets early will clog the Conveyor Belt. You must selectively pull only one Red set to access the Browns, then clear the Brown Boxes to lower the left barrier countdown.

How to Beat Marble Sort Level 172 — Step-by-Step

Phase one: Clearing the Front Row Bait

  1. Tap the far-right Green marbles and send them straight down to the Green bottom Box.
  2. Route the two Pink marble sets from the front row to the Conveyor Belt; they will process into the Pink Box on the right.
  3. Carefully drop only one set of Red marbles to the belt, accepting it will occupy space temporarily.
  4. Now dig out the Brown marbles from the second row and feed them into the two Brown bottom Boxes.
  5. Once the Browns land, those Boxes clear, reducing the blue countdown on the left by one.

Phase two: Exposing the Mystery Boxes and Getting the Key

  1. After the first wave, new Boxes slide in: Blue, Blue, Pink, and Green. Clear any remaining Red or Orange marbles from the belt by sending them to matching Boxes if available, or park them temporarily.
  2. Reveal the center by tapping the grey Mystery Boxes one at a time, matching each revealed color to an active bottom Box.
  3. Shift focus to the right column of the Top Tray. Drop the Yellow marbles to expose the Key.
  4. Once the Key is accessible, tap the block holding it to unlock the Purple Box on the lower right.

Phase three: Final Clearance

  1. With the left column now open, drop the Black and remaining Pink marbles into their matching Boxes.
  2. Flush any leftover Mystery Boxes by tapping them one by one, sending the final Blues, Greens, and Oranges to their destinations.
  3. Finally, send the Purple marbles into the unlocked Purple Box to complete the level.

Tips & tricks

  • Always scan the bottom Box demands before matching top marbles; prioritize colors that are immediately needed.
  • When the belt gets crowded, use the queue to your advantage by planning two moves ahead.
  • Keep the center Mystery Boxes for last; they are unpredictable but manageable if you have space.

Common mistakes

  • Dropping both Red sets early, which jams the belt and delays the Brown extraction.
  • Tapping all Mystery Boxes at once, flooding the belt with unmatched colors.
  • Ignoring the locked Purple Box; you must unlock it before the endgame.

Marble Sort Level 172 FAQ

Why does my Conveyor Belt flood on Marble Sort Level 172?

It floods because you drop the Red bait sets too early, filling the belt with marbles that have no matching Box, leaving no room for the Browns you need.

Which color do I clear first on Marble Sort Level 172?

You should clear Green first by tapping the far-right Green marbles, as they directly fill a front Box, then focus on extracting the Browns.

How many moves does it take to clear Marble Sort Level 172?

There's no fixed move count, but following this order efficiently clears the board in roughly 40–60 moves, depending on Mystery Box outcomes.

Do I need boosters to beat Marble Sort Level 172?

No, boosters are not required if you follow the correct sequence, but they can help if you make a mistake and need to untangle the belt.

What happens if I drop all Reds early on Marble Sort Level 172?

If you drop all Reds early, they clog the belt, making it impossible to access the Browns until you waste moves clearing them, often leading to a deadlock.

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