Marble Sort Level 66 is a masterclass in bait. Half your bottom area is blind, the Top Tray is jagged and front-heavy, and several upper colours are tied together. The dominant colours are Dark Red, Green, Light Blue, plus a huge wave of Orange and Purple coming in the midgame. Tap a colour that looks open and you'll flood the belt before the right side even reveals itself.
The bottom Boxes split cleanly. Column one stacks Green, Brown, Light Blue and Orange; column two stacks Light Blue, Pink, Orange and Light Pink. Those two are transparent. Columns three and four start with Dark Red but hide Mystery Boxes, then demand Green and Pink. The Top Tray's lowest row holds two Green and two Brown clusters, with Dark Red, White, Dark Grey, Pink and Orange above them.
Marble Sort Level 66 Walkthrough
The connected pairs are the trap. Light Blue is tied to Purple, Pink to Light Blue, and Orange to Light Pink — tap one and both drop. If the second colour has no Box, it eats belt space. The Light Blue-and-Purple link is the worst bait on the board, so leave it alone early.
Clear the initial Dark Reds fast to strip the hidden obstacles, and use the visible left side as a dump for your front-line blockers.
How to Beat Marble Sort Level 66 — Step-by-Step
Break the front line
- Target the Green clusters at the bottom edge and drop them into the Green Box in column one.
- Siphon the Dark Reds from the left and upper right into the Dark Red Boxes at the top of columns three and four.
- Clearing those Dark Reds reveals the first Mystery Boxes on the right — read their colours.
- Drop the Brown clusters from the bottom edge into the Brown Box in column one.
- Leave the Light Blue-and-Purple pair completely alone for now.
Manage the midgame flood
- Clear the newly revealed Mystery Box colours in columns three and four immediately.
- Trigger the Light Blue-and-Purple pair now that the Light Blue Box in column two is ready. Let the Purple sit — a Purple Box is coming.
- Don't tap the Orange until the Orange Boxes in columns one and two are fully exposed.
Clear the final bottleneck
- Flush the Purple on your belt into the Purple Boxes cycling through the middle columns.
- Drop the Pink and Light Pink pairs from the upper right now that the Pink Boxes in columns two and four are active.
- Handle the last Mystery Boxes with at least three open slots, then flush the Dark Grey and Light Blue to finish.
Tips & tricks
- Read both sides of a connected pair before you tap it — the second colour has to have a home too.
- Clear the Dark Reds first. They're the key that unlocks the right-side Mystery Boxes.
- Let a dropped Purple ride on the belt for a turn; its Box always shows up right after the Light Blue.
Common mistakes
- Tapping the Light Blue-and-Purple pair early. The Purple has no Box, so it drops dead and ruins your spacing.
- Hitting Orange the moment you see it, before the Orange Boxes in columns one and two are actually exposed.
Marble Sort Level 66 FAQ
Why does my Conveyor Belt flood on Marble Sort Level 66?
You tapped a connected pair whose second colour had no Box, usually the Light Blue-and-Purple link. The Purple drops dead and eats a slot.
Which color do I clear first on Marble Sort Level 66?
The Green clusters at the bottom edge, then the Dark Reds. They clear the left side and reveal the Mystery Boxes that unlock the right.
How many moves does it take to clear Marble Sort Level 66?
It runs in three waves — break the front line, ride the midgame flood, then clear the tied colours at the end. Roughly a dozen careful taps.
Do I need boosters to beat Marble Sort Level 66?
No. Read the connected pairs and clear the Dark Reds first, and the board sorts itself. Boosters won't untie the pairs for you.
What happens if I tap the Light Blue-and-Purple pair early on Marble Sort Level 66?
Both drop, but the Purple has no Box, so it sits on the belt and blocks your spacing before the Purple Box ever appears.
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