Marble Sort Level 21 Solution: The Move Order That Clears the Board

Level 21 3x3 Mystery Grid and Dual Countdown Tunnels

sphere Sort Level 21 hits one using one huge wall from hidden information right out of the gate.

this dominant shades on play sit azure, Black, Green, and a highly suspicious Red.

this upper rack sits dominated via one huge 3x3 grid from grey Mystery Boxes sitting dead center.

Flanking this central grid sit two Tunnels , both stamped with a "3".

This means one should empty three lower cases before those Tunnels shall open and release the marbles trapped inside.

this frontline from this upper rack sits fully exposed, but dropping this wrong color here is fatal.

this entire level revolves across clearing this safe head spheres into trigger this Tunnels without accidentally dumping blind colors onto your Conveyor Belt .

Level 21 Dual Tunnel Countdown

one want into know exactly how this board sits stacked to avoid an early game over.

this layout sits one deliberate snare designed to crowd your Conveyor Belt .

this head accessible line reads west into east: one dark piece, one emerald piece, one azure piece, one crimson piece, another Black block, and another Blue block.

past this middle pieces rests that intimidating 3x3 grid of Mystery Boxes .

this west flank sits controlled by a Tunnel requiring 3 clears.

past that tunnel rests one lane from three Light azure blocks and one Pink block.

this east flank holds a matching Tunnel requiring 3 clears.

past that rests one emerald piece, two Brown blocks, and another Green block.

Hanging off this far east edge sits one staggered lane containing a Brown, Green, and Blue block.

this four lanes from west into east start using: lane 1: azure, followed by Yellow, Pink, Light Blue, Green.

lane 2: azure, followed by Yellow, Brown, Black, Yellow.

lane 3: dark, followed by Green, Brown, Pink, Yellow.

lane 4: emerald, followed by Black, Green, Green, Pink.

this ready frontline over this lower consists from two azure cases over this west, one dark case on this middle-east, plus one Green Box on the far right.

this upper rack gives one crimson piece east in the middle of your accessible frontline.

here sits zero crimson case anywhere near the top of those columns.

If one touch that crimson piece, that shall send onto this Conveyor track plus sit here with half this game, eating onto rare room as you struggle to clear the Mystery Boxes .

Level 21 Level Overview

this puzzle here sits strictly about the order of operations.

one hold exactly enough safe taps to open the Tunnels .

Level 21 Unlocking the Tunnels

this first taps should empty this immediate lower frontline into satisfy this "3" requirement on those upper Tunnels .

choose this two azure pieces located over the frontline of the Top Tray .

They shall send plus immediately empty this two azure bottom Boxes on the left side.

Your tunnel countdowns just dropped to 1.

choose this frontline Black block on the far left.

choose this frontline emerald piece positioned perfectly above the bottom Green Box .

those spheres shall flow into this ready dark and Green bottom Boxes , clearing them instantly.

Both this left and right Tunnels will now open.

Level 21 Revealing the Mystery Grid

Clearing that first wave fundamentally shifts this board.

using this head line cleared, this 3x3 grid from Mystery Boxes is now the active frontline.

send the bottom row of these mystery blocks.

Your active lower Boxes have now shifted.

one sit looking at gold, gold, Green, and Black as your new targets.

Evaluate this colors revealed by the Mystery Boxes .

If they show gold, emerald, or dark, match them immediately into keep the board moving downward.

this east Tunnel sits now dispensing Green and Brown marbles.

one hold one Green bottom Box active in column 4.

route this emerald marbles from the right side into it.

As this secret cases show random shades, just bring down what perfectly matches this current active row of bottom Boxes .

Level 21 Pushing Through the Final Layers

Once this central secret grid sits cleared out, the board opens wide.

the bottom lanes shall start asking with Brown, Pink, and Light Blue Boxes .

this west Tunnel holds the entire supply from Light Blue and Pink marbles.

Start pulling from this west flank into clear column 1 and column 3.

this east flank plus this staggered far-east column hold your Brown blocks.

Use those into empty this center-layer of column 2 and column 3.

via this time one atlast reach one crimson lower case , one may securely send that original head crimson piece that holds been waiting patiently since step one.

Keep this track empty, match this revealed shades patiently, and the level clears itself.