Marble Sort Level 661 Solution: The Move Order That Clears the Board

Hard ★★★★☆ ~43 moves

Screenshots

Marble Sort Level 661 screenshot 1Marble Sort Level 661 screenshot 2Marble Sort Level 661 screenshot 3Marble Sort Level 661 screenshot 4

Step-by-step solution

Quick answer
  1. 1) Poke the Purple cluster in the lower-left of the Top Tray and let it fall straight onto the belt, where it funnels into the active Purple Boxes sitting on top of column 2 and column 4.
  2. 2) Leave the Dark Grey cluster in the lower-right completely alone for now, since no Dark Grey Box is available to catch those marbles yet.
  3. 3) Poke the Light Blue cluster in the lower-middle so it drops into the active Light Blue Box sitting at the top of column 3.
  4. 4) Whatever sits right above the Light Blue you just cleared turns out to be Purple, so tap that middle-row Purple cluster right away to empty the second Purple receiver in column 2 and finally expose the Pink Box beneath it.
  5. 5) In the midgame, release the lower-right Dark Grey cluster now that the Dark Grey Boxes have surfaced in column 4, routing those marbles straight into the newly exposed receivers.
  6. 6) Shift to the left column, float the Orange cluster on the belt for a moment to reach the trapped Pink and Light Blue clusters, then tap the top-right Pink cluster to fill the Pink Box uncovered in column 1.
  7. 7) Keep column 4 as your top feeding target whenever a matching color shows up, release the top-middle Dark Grey cluster to finish the remaining Dark Grey Boxes, and grab the final Pink clusters off the left side of the Top Tray.
  8. 8) When the last Purple Box in column 4 finally clears, the stranded Orange marbles on the belt drain automatically into the bottom Orange Box, then pour the leftover Light Blue clusters into the last open receivers and never pull a color whose box is buried more than two layers deep.

Level 661 Dark Grey Opening Trap

one send on, look at this lower line from the ready spheres, and think you have three easy moves.

this entire challenge on sphere Sort Level 661 sits built across some immediate shade mismatch between this lower line from the available spheres plus the top row of your receiving containers.

this dominant shades controlling this board sit violet, Light Blue, Dark Grey, Pink, and Orange.

the upper rack sits one dense, totally visible grid from 3x3 sphere groups arranged in three columns and four rows.

Below this Conveyor track , one hold four lanes of bottom Boxes waiting to be filled.

that is pure, raw order-of-operations logic.

Make one bad choose on this opening ten seconds, plus your belt jams permanently.

Level 661 Raw Blocking Pattern

into beat this board, one hold into read the exact layout before tapping anything.

Look at this lower-most line of clusters in your Top Tray .

From west into east, one hold one violet group, one Light azure cluster, and a Dark Grey cluster.

These are your only three starting options.

Now look down at this front line of your bottom Boxes .

From west into east across this four lanes, this upper exposed cases are Pink, Purple, Light Blue, and Purple.

This sits this central trap of Marble Sort Level 661 .

Notice what sits missing from the bottom row?

here sits zero Dark Grey Box available to receive marbles.

If one choose that lower-east Dark Grey group on this upper rack east away, those spheres shall right flood the Conveyor Belt and sit there.

since this track holds extremely limited room, stranding one huge group from Dark Grey spheres east at the start will suffocate your midgame.

this entire layout from the lower Boxes dictates your pace.

Let’s map this exact tall stacks one sit dealing using: lane 1: rose rests over upper, blocking Purple, Dark Grey, and Light Blue.

lane 2: violet rests over upper, blocking one second Purple, Pink, and Dark Grey.

lane 3: Light azure rests over top, blocking Purple, Light Blue, and Pink.

lane 4: violet rests over upper, blocking two Dark Grey cases , another Purple, and an Orange.

one can't touch this west side from this upper rack until one resolve this right side of the bottom Boxes .

this big concentration from violet on lanes 2 plus 4 makes Purple your absolute highest priority.

Level 661 Level Overview

Your opening moves require strict discipline.

one should ignore this right side of the top board completely.

Level 661 Surviving the Opening Taps

this first phase sits all about clearing this first violet plus Light azure blockers without stranding useless shades on the belt.

choose this lower-left Purple cluster in the Top Tray .

Send that straight down to the Conveyor Belt .

Watch those spheres funnel into this ready violet cases parked at this top of column 2 and column 4.

Clearing these opens up the board significantly.

Do absolutely nothing using the bottom-right Dark Grey cluster.

Tap the bottom-middle Light Blue cluster.

This shall send down plus route directly into this ready Light azure Box at the top of column 3.

Look at what just opened onto in the Top Tray .

this group directly above this Light Blue you just cleared is Purple.

Tap this middle-row Purple cluster immediately.

This second wave from violet spheres shall empty this second violet case on lane 2, atlast exposing this much-needed Pink Box beneath it.

Level 661 Managing the Midgame Conveyor Crush

Once this upper tiers sit gone, this board transitions into a highly dangerous midgame.

via clearing those first violet plus Light azure tiers, one hold exposed amber and Pink clusters in the Top Tray .

one hold also exposed Dark Grey cases in the lower section.

Now sits this time into atlast release that lower-east Dark Grey cluster from the Top Tray .

this Dark Grey spheres shall route directly into this newly exposed Dark Grey cases in column 4.

Shift the attention into the left column of the Top Tray .

one hold some amber group parked above this now-empty room where the first Purple cluster was.

one shall likely want into float those amber spheres on the Conveyor Belt for a moment.

one should get them out from this way into reach this rose and Light Blue clusters trapped behind them.

choose this rose group over the top-right of the Top Tray .

that shall send plus fill this rose Box that you uncovered in column 1.

that holds one deep stack from Dark Grey plus another violet before one may atlast reach this single Orange Box at the very bottom.

one should prioritize feeding lane 4 whenever a matching color is available.

Level 661 Unlocking the Final Layers

If the track isn't jammed using Orange, you are in the clear.

Release the top-middle Dark Grey cluster.

This should finish off this remaining Dark Grey cases in the lower section.

bring this last rose groups from this left side of the Top Tray .

this remaining rose cases on lane 2 plus column 3 should now be fully exposed.

Once this last violet case over lane 4 clears, this stranded amber spheres over this Conveyor track shall automatically drain into the bottom Orange Box .

Dump this remaining Light azure groups into this final open Boxes to finish the board.

Keep the taps methodical plus never bring one shade if its matching lower container sits buried more than two layers deep.

Frequently Asked Questions

What is the main trap to avoid in Level 661?

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 661?

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 661?

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 661 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.