Marble Sort Level 667 Walkthrough Solution | Marble Sort 667

Marble Sort Level 667 Guide: The Center Cross Trap and Hidden Box Chaos

Marble Sort Level 667 hits you with an incredibly deceptive layout right from the start. You are looking at a massive central puzzle heavily guarded by frosted layers and chained mechanics, surrounded by a perimeter of incredibly tempting bait.

The dominant colors you need to worry about early on are light blue, yellow, pink, and dark blue. The immediate trap is the sheer volume of accessible outer marbles—specifically the loose oranges, greens, and reds lining the top and bottom edges. If you start grabbing those just because they are free, your Conveyor Belt will choke before you even touch the real puzzle. The key to surviving Marble Sort 667 is understanding exactly how the bottom collections dictate your opening moves and patiently unpeeling the outer shell.

The Center Cross Pattern in Marble Sort Level 667

Look closely at the Top Tray arrangement. This specific board is defined by a giant cross formation sitting dead in the center. This cross is made entirely of grey Mystery Box tiles. Even worse, the tiles inside this central cross are linked together by Connected Boxes brackets. They will pull each other down, meaning you cannot clear them one by one.

Surrounding this grey cross is a protective ring of Iced Box marbles. You can clearly see a frosted pink, red, green, dark blue, yellow, and orange marble locked in ice. They will not activate until you drop the adjacent, un-iced boxes.

Flanking this frozen center is the bait. On the far left edge, you have a vertical stack of loose light blue, purple, and yellow marbles. On the far right edge, you have purple, green, light blue, and red. The bottom edge offers free orange, red, and green marbles, while the top edge teases orange, green, and red. They look easy to grab. Do not touch them yet.

Now look at your bottom Boxes. The placement here completely dictates your opening route. You have four columns. The far-left column demands pink, but immediately below it sits a stack of three grey Hidden Box layers. The far-right column demands yellow, also sitting on top of three Hidden Box layers. The two middle columns are your main visible workspace. The middle-left column needs light blue, followed by red, pink, and light blue. The middle-right column needs dark blue, followed by yellow, dark blue, and pink.

Because the extreme left and right columns are blinded by the Hidden Box mechanic, you are playing blind on those sides the moment you clear the initial pink and yellow. Your Conveyor Belt will fill up fast on the left side if you guess wrong.

Marble Sort Level 667 Step-by-Step Walkthrough

Breaking the Outer Bait in Marble Sort Level 667

Your first taps must be surgically precise. Ignore the bottom edge orange and red marbles completely.

1. Target the loose light blue and yellow marbles sitting on the far left and right edges of the Top Tray.
2. Send the light blue marble from the left edge down to clear the top Box in the middle-left column.
3. Send the yellow marble from the outer left edge down to clear the top Box in the far-right column.
4. Clearing that yellow Box immediately reveals the first Hidden Box on the right side. It also shifts the middle-left column, revealing a red Box.
5. Grab the loose red marble sitting on the outer right edge of the Top Tray to feed that newly revealed red Box.

Thawing the Iced Box Ring in Marble Sort Level 667

You now need pink for the far-left column and dark blue for the middle-right column. Both of these are trapped inside the Iced Box ring surrounding the center cross.

6. Clear the remaining outer edge marbles (like the purple or green) only if they are blocking the frosted pink in the upper-left or the frosted dark blue in the lower-right. Dropping these adjacent outer boxes is the only way to thaw the ice.
7. Drop the newly thawed pink marble into the far-left Box. This finally exposes the first Hidden Box on the left side.
8. Drop the thawed dark blue marble into the middle-right Box, advancing that column to its next requirement (yellow).
9. Look at your Conveyor Belt. If you have two or three empty slots, it is time to breach the center.

Surviving the Connected Boxes in Marble Sort Level 667

The middle of the board is where Marble Sort 667 usually ends runs. Once the icy shell is gone, you are left staring at a cross of grey Mystery Box tiles.

10. Look for the bracket symbols linking these mystery tiles. These are Connected Boxes. When you tap one, it drags its partner down to the Conveyor Belt simultaneously.
11. Never click a connected pair unless you have at least two completely free slots on your belt.
12. Tap the outer edges of the grey cross first. They will reveal random colors. Only send them down if they match the current top layer of your four bottom Boxes.
13. By the late game, those Hidden Box columns on the left and right will start demanding mid-game colors like brown, white, or orange. You will likely find these buried under the mystery tiles in the center.
14. Hold off on dropping any remaining green or purple marbles from the top corners until the very end. Keep your Conveyor Belt strictly reserved for processing the chained mystery tiles dropping from the center cross. Clear the middle, match the hidden bottom layers, and the board will finally open up.