Marble Sort Level 678 Walkthrough Solution | Marble Sort 678

Marble Sort Level 678 Guide: The Giant 6-Clear Panel Trap

Welcome to the roadblock. You load up the board and immediately see a massive vault door dominating the center of the screen. That is a Panel with a giant "6" stamped on it, and it dictates everything you do for the first half of this match. You cannot touch the middle of the board until you clear six bottom Boxes.

To survive this, you need flawless Conveyor Belt management. The early game relies entirely on Brown, Pink, Black, and Green marbles. If you start clicking the shiny outer colors too early, you will jam the belt and fail before the center even opens. We need to dissect exactly how this board is layered so you can break that center lock.

The Locked Center Pattern in Marble Sort Level 678

This board is deliberately designed to starve you of options. You have to work the edges and the tiny sliver of accessible space just above the lower drop zone.

Here is exactly how the Top Tray is rigged against you:

• The Left Flank Traps: A towering stack of Purple, Red, and Light Pink marbles sits on the left side. You cannot use them yet. Why? Because the very bottom marble blocking that entire column is Brown.
• The Right Flank Traps: The right side is a mirror image of the left. It holds Light Blue, Orange, and Brown marbles, but it is completely plugged at the bottom by two Green marbles.
• The Center Blockade: The massive Panel hides nine critical marbles. You are completely locked out of the middle.
• The Lifeline Row: Directly beneath the Panel, there is a single horizontal row of accessible marbles: Pink, Brown, Black, and Light Blue. These are your starter pieces.

Now look at the lower Boxes. The front row demands Black (Column 1), Pink (Column 2), Green (Column 3), and Brown (Column 4).

The right side of the bottom tray holds a nasty surprise. You will see thick black lines linking the boxes together. These are Connected Boxes. The top Green box in the third column is tied directly to the Green box in the fourth column. Deeper down, another Green box is tied to a Black box. They move together, meaning you have to plan for double-clears on the right side of the board.

Upper corner colors like Purple and Light Blue look tempting. Leave them alone. They are pure bait. Touching them will instantly clog your Conveyor Belt because their matching Boxes are buried deep in the back.

Marble Sort Level 678 Step-by-Step Walkthrough

You have one job right now: get six clears to shatter that center Panel. Every tap must serve that goal. Do not hoard marbles on the belt hoping for a lucky spawn.

Surviving the First Six Clears in Marble Sort Level 678

We need to match the exposed marbles to the front row of the lower Boxes. Be precise with this opening sequence.

1. Feed the Left Columns: Tap the exposed Black and Pink marbles sitting just below the Panel. Send them down to start filling the front Black Box (Column 1) and Pink Box (Column 2).
2. Unplug the Left Flank: Grab the single Brown marble at the very bottom of the far-left column. Then, grab the other Brown marble sitting directly under the Panel. Send them to the Brown Box in Column 4. This crucially opens up the left side of the board.
3. Unplug the Right Flank: Tap the Green marbles at the bottom of the far-right column. Use them to feed the Green Box in Column 3.
4. Manage the Connected Boxes: Because those Green Boxes are tied together, clearing the first one shifts the entire right-side dynamic. Focus your next available Green marbles here to clear the chain.
5. Hit the Magic Number: Keep cycling through the newly exposed Pink, Brown, and Black marbles from the side flanks. Ignore the Purple and Light Blue marbles at the top. Once you clear your sixth Box, the board transforms.

Shattering the Panel in Marble Sort Level 678

The moment the sixth box clears, the Panel flies off. The center of the Top Tray is finally exposed, revealing a chaotic mix of Light Blue, Purple, Orange, Black, and Green marbles.

The game shifts here. The pressure on the Conveyor Belt drops for a second, but a new trap appears in the bottom tray.

1. Assess the Arrow Box: As the lower columns shift up, keep an eye on the left side. An Arrow Box will come into play. A red line ties a lower box to an upper one, meaning the top box is completely disabled until you clear the specific box it points to. Prioritize whatever color the bottom of that arrow demands.
2. Unload the Flanks: Now that you have center support, those tall stacks of Purple and Red on the left, and Light Blue and Orange on the right, are finally playable. Match them with the newly revealed center marbles.
3. Clear the Deep Pink and Light Blue: The second row of your bottom Boxes features Light Pink and Light Blue. Use the center column's fresh supply of Light Blue to wipe out Column 1 and Column 2.
4. Pace the Conveyor: You will have a massive influx of Orange and Purple marbles. Do not drop them all at once. Check your bottom Boxes first. Only pull an Orange if the Orange Box is active or one drop away from being active.

Finishing the Late Game in Marble Sort Level 678

Once the Arrow Box is defeated and the mid-board is hollowed out, the level opens up beautifully. The final threat is the second set of Connected Boxes hiding in the back right (the Green tied to the Black).

Hold back two slots on your Conveyor Belt specifically for this transition. Let the Black box drop, fill it with the remaining center marbles, and the rest of the board will practically sort itself. Keep your belt clean, respect the connected chains, and you will easily crush this level.