Marble Sort Level 138 Solution: The Move Order That Clears the Board

Easy ★☆☆☆☆ ~25 moves

Screenshots

Marble Sort Level 138 screenshot 1Marble Sort Level 138 screenshot 2Marble Sort Level 138 screenshot 3Marble Sort Level 138 screenshot 4

Step-by-step solution

Quick answer
  1. 1) Ignore the red and green frontline blocks entirely — neither has a bottom receiver yet, so tapping either one jams the belt. Anchor your whole opening on the right side instead.
  2. 2) Drop the blue block sitting on the middle-right edge into the blue receiver in column two, then send the orange block further up the right edge into the far-right orange box.
  3. 3) To shatter the two marked 4 Panels you must clear four bottom boxes, so tap the reachable gray mystery blocks just above the frontline and push any brown matches straight into the waiting receivers.
  4. 4) Clear the front orange box, then track down the second orange cluster tucked past those mystery blocks on the right side and send it down to keep the clears coming.
  5. 5) Once the fourth box clears, the Panels break open — the left side reveals tall stacks of dark and light green, while the center and right expose white, pink, purple, and blue.
  6. 6) Let the lower columns cycle into purples, light greens, and whites, then use the purple blocks revealed by the shattered right Panel to wipe out the queued purple bottom boxes.
  7. 7) In the finale, release the dark green on the left only when its bottom box is open, prioritize the white and pink in the middle to clear the center columns, and never keep more than three unmatched marbles on the belt before feeding the last greens.

Level 138 Double Panel Trap and Early Jam Risk

If one sit stuck over this one, you are not alone.

This board sits specifically designed into trap one into making one fatal mistake on your very first tap.

one load on, spot some brightly colored pieces ready into go, plus the instinct sits into immediately drop them onto the Conveyor Belt .

This board sits one masterclass in queue management and forced waiting.

into beat sphere Sort Level 138 , one hold into totally ignore this most obvious taps plus hunt with the awkward, asymmetrical matches on the edges.

this puzzle relies heavily over obscuring the vision plus strangling the Conveyor track room before one even realize you made a mistake.

Let's break down exactly how this snare works and how to tear it apart.

Level 138 Deceptive Board Pattern

this layout from sphere Sort Level 138 sits incredibly hostile right out of the gate.

Most from the upper rack sits covered on gray mystery blocks marked with question marks.

one can't spot what shades one are actually working with in the center.

Worse, two huge Panels sit east in the middle of the grid.

Each door sits marked using one "4", meaning one hold into empty four complete lower cases before those sections from this board even unlock into reveal what is hiding underneath.

this real threat rests at this very bottom edge of the Top Tray .

one hold three clearly visible, accessible pieces east over this frontline: one crimson piece over this west, one emerald piece on this middle, plus a blue block on the right.

Now look down at the starting bottom Boxes .

this four lanes demand brown, azure, brown, and orange to start.

If one choose this crimson or emerald pieces at this lower of the Top Tray , you are dead.

They shall send down onto this Conveyor Belt and just sit there.

here sit zero crimson or emerald bottom Boxes available to accept them.

one shall permanently lose valuable slots over this track with one shade that might not become playable until this midgame.

this east side from the board is your only lifeline.

one hold one azure lower case on this second lane plus some orange bottom Box on the far right.

onto on this upper rack , one hold that frontline azure piece, plus slightly further onto the right edge, a visible orange block.

This east-side bias sits the entire key to opening the level.

Level 138 Level Overview

One bad choose over one secret piece or one trap shade shall clog the Conveyor Belt and end your run.

Follow this exact empty order to safely dismantle the board.

Level 138 Navigating the Opening Bait

the just goal east now sits into empty four lower cases into shatter those "4" Panels without jamming the belt.

Send that down into fill this azure bottom Box waiting in the second column.

that rests over this middle-right edge of the Top Tray .

send that into fill this upper orange Box in the far-right column.

one desperately want brown spheres to clear the first and third columns.

Carefully choose this accessible gray secret blocks sitting just above the frontline.

Route any brown matches immediately into this waiting bottom Boxes .

As one empty this head amber case , another orange Box sits right beneath it.

Look with this next amber group concealing past this secret pieces over the right side and drop it down.

Level 138 Shattering the Panels

Once one manage into empty four lower cases , the dynamic of the board flips entirely.

Hitting that fourth empty shatters this two "4" Panels in the Top Tray .

this board suddenly opens onto, revealing a massive chunk of solid colors.

this west side shall suddenly expose big stacks of dark green and light green.

this middle plus east will reveal white, pink, purple, and blue.

Your bottom targets will drastically change.

this bottom lanes shall spin into one big mix of purples, light greens, and whites.

one shall likely hold multiple violet bottom Boxes queued up across the columns.

Use this newly exposed violet pieces from this shattered right Panel to clear these out.

Level 138 Managing the Late Conveyor Crush

this last phase from this board tries to overwhelm you with volume.

one shall hold one lot from emerald pieces exposed onto upper, but one must release them in the correct sequence.

this west side from this upper rack holds one thick stack from dark emerald sitting right on top of light green.

just send this dark emerald if one hold a dark green bottom Box actively open.

If one send them onto this Conveyor track too first, they shall piece the light greens you might actually need.

this middle from this upper Tray holds crucial white and pink blocks.

Prioritize dropping those into empty out this stubborn bottom Boxes in the center columns.

Once this middle lanes empty, this last lower cases will demand the remaining greens and browns.

Never let more than three unmatched spheres sit on the belt at this stage.

send this remaining stacked emerald pieces into their matching lower Boxes to finish the board.

Frequently Asked Questions

What is the main trap to avoid in Level 138?

The biggest mistake is tapping colors that have no active bottom Box yet. They park on your Conveyor Belt and burn limited slots, so clear the shades that actually have receivers first.

How should I open Level 138?

Ignore the upper layers and aim at the bottom row of the Top Tray. Feed the colors that already have open boxes, then work upward once the lower lanes shift.

When does the midgame color change happen in Level 138?

After the opening boxes fall, the lower columns swap what they demand. Watch for the new shades and only pull blocks that match a box sitting at the front of a lower lane.

Any tip for finishing Level 138 clean?

Keep at least a few empty belt slots before poking mystery or hidden boxes. Feed a revealed color the moment it matches an active box, and fall back to visible marbles when the belt gets tight.