Marble Sort Level 678 — Walkthrough and Solution

Marble Sort Level 678 presents a board with a massive central panel that blocks access to the middle until you clear six boxes from the bottom. The key is to carefully manage the conveyor belt and work only with the marbles that are initially reachable, avoiding the tempting upper colors that will clog your belt.

The board is split into several zones. On the far left, a tall stack holds Purple on top, Red below it, and Light Pink at the bottom, but the whole column is blocked by a Brown marble at its base. On the right, a similar stack contains Light Blue, Orange, and Brown, but it is sealed by two Green marbles at the bottom. Directly beneath the central panel, there is a single horizontal row of accessible marbles: Pink, then Brown, then Black, and Light Blue at the right end. The lower area has four boxes in the front row, demanding Black in column 1, Pink in column 2, Green in column 3, and Brown in column 4. Additionally, some boxes on the right are linked: the top Green box in column 3 is connected to the Green box in column 4, and a deeper Green box is tied to a Black box, meaning they clear together.

Marble Sort Level 678 Walkthrough

Your immediate goal is to achieve six clears to shatter the central panel. The front row of boxes requires Black, Pink, Green, and Brown in that order from left to right. You have access to these colors in the row under the panel and in the lower parts of the side stacks.

The main trap is the pair of connected boxes on the right side. Because they move together, you must plan to clear them in sequence, and you must avoid pulling marbles that you cannot immediately use, especially the Purple and Light Blue from the upper areas.

How to Beat Marble Sort Level 678 — Step-by-Step

Phase one: Unlock the center

1. Tap the exposed Black marble from the row under the panel and guide it to the Black box in column 1.
2. Slide the Pink marble from the same row into the Pink box in column 2.
3. Send the Brown marble that sits at the bottom of the far-left column to the Brown box in column 4.
4. Route the other Brown marble from the row under the panel to the same Brown box, completing it and opening the left flank.
5. Release the Green marbles blocking the far-right column, feeding them to the Green box in column 3.
6. Continue clearing the connected Green boxes on the right, using the newly exposed Green marbles from the right stack.
7. Cycle through the Pink, Brown, and Black marbles that become available from the side stacks, always matching them to the active boxes. Do not touch the Purple or Light Blue marbles at the top.
8. After you clear the sixth box, the central panel will disappear, revealing the middle section.

Phase two: Work the center and side stacks

1. Assess the left side: an Arrow Box appears, with a red line pointing from a lower box to an upper one. The upper box is disabled until you clear the box it points to, so prioritize the color that the arrow indicates.
2. Now that the center is open, you can start using the tall stacks of Purple and Red on the left, and Light Blue and Orange on the right. Match them with the marbles revealed in the center.
3. Clear the second row of boxes, which need Light Pink and Light Blue. Use the fresh Light Blue from the center to fill the Light Blue box in column 2.
4. Keep an eye on the conveyor belt: you will have many Orange and Purple marbles. Only drop them when their matching boxes are active or about to be active.

Phase three: Finish the late game

1. Once the Arrow Box is resolved and the middle is mostly empty, focus on the remaining connected boxes: a Green box tied to a Black box on the far right.
2. Reserve two slots on your conveyor belt for the Black and Green marbles you will need for that final chain.
3. Let the Black box drop, fill it with the remaining center marbles, and then clear the Green box that follows.
4. With the connected chain gone, the rest of the board will sort itself; just keep the belt free of clutter and match colors correctly.

Tips & tricks

• Always prioritize clearing the lower boxes to unlock the center panel; do not get distracted by upper colors.
• Keep two empty slots on your conveyor belt for the final connected boxes.
• Watch the arrow indicator: it tells you which box to clear first to unlock others.

Common mistakes

• Tapping the Purple or Light Blue marbles early, which jams the belt because their boxes are not accessible yet.
• Ignoring the connected boxes and trying to clear them separately, which wastes moves.
• Filling the belt too quickly, leaving no room for essential marbles that appear later.

Marble Sort Level 678 FAQ

Get the Official Game

⬇ Download Marble Sort

Back to the full Marble Sort level list.