Marble Sort Level 685 Walkthrough Solution | Marble Sort 685

Marble Sort Level 685 Guide: The Yellow Yarn Trap and Midgame Lockout

This board is a masterclass in bait. Marble Sort Level 685 uses a heavy front-to-back reveal mechanic driven by knitted yarn covers that completely paralyze your bottom Boxes. The dominant colors sitting in the Top Tray are bright reds, yellows, light blues, and greens. But color sorting is not the real puzzle here. The entire level revolves around clearing specific colored yarn balls sitting on top of the marbles to unravel the massive blankets hiding your lower board.

If you tap the wrong front-row marble early, your Conveyor Belt will fill up instantly. You will have nowhere to dump your pieces. Let’s break down the exact obstacle chain and how to sequence your clears without jamming the belt.

The Yarn and Cover Pattern in Marble Sort Level 685

Look closely at how this specific board is arranged. The Top Tray forms a staggered, jagged diamond shape. Two blue Tunnels, each marked with a "3", sit on the top-left and top-center. These hide extra marbles that will drop later, so you cannot account for every color right away.

The immediate threat is at the bottom. Your lower playing area has four columns of Boxes, but you can only see three of them. The entire fourth column on the far right is completely swallowed by a massive yellow knitted cover. This dead space controls the entire opening phase of Marble Sort Level 685. You cannot play anything into that right side until the cover is gone.

To remove that yellow blanket, you have to look back up at the Top Tray. On the front-right edge, there is a red marble with a yellow yarn ball sitting directly on top of it. Dropping that specific red marble into a bottom Box will unravel the yellow cover. That is your primary key.

But here is the trap. Look at the bottom Boxes you actually have available at the start. Column 1 starts with a Pink Box. Column 2 starts with a Yellow Box. Column 3 starts with a Purple Box. There is no Red Box open!

The front row of the Top Tray gives you a Red, a Yellow, a Light Blue, and that crucial Red with the yellow yarn. The Light Blue is pure bait. Do not touch it. If you drop the Light Blue marble onto the Conveyor Belt, it will sit there taking up precious space because the Light Blue Box is buried deep in column 1 under the Pink Box.

Your entire opening route is dictated by finding a place for that red marble so you can clear the yellow yarn ball.

Marble Sort Level 685 Step-by-Step Walkthrough

Follow this exact tap order. The priority is opening up the right side of the board before the Conveyor Belt gets overwhelmed.

Opening Moves and Breaking the Yellow Knit in Marble Sort Level 685

You need a Red Box. The only way to get one is to dig into the columns you can actually see.

1. Target the Yellow Box: Tap the yellow marble in the bottom row of the Top Tray. Send it down to the Yellow Box at the top of column 2.
2. Clear the Yellow Box: Find the remaining yellow marbles accessible in the Top Tray to finish filling that Yellow Box. Clearing it is your first major milestone.
3. Reveal the Red Box: Once that Yellow Box drops away, look at what was hiding directly underneath it in column 2. It is a Red Box. You just found your keyhole.
4. Drop the Yarn Ball: Immediately tap the front-right red marble—the one carrying the yellow yarn ball. Send it into the newly opened Red Box.
5. Watch the Board Open: As soon as that red marble is sorted, the yellow yarn ball unwinds. The massive yellow knitted cover on the right side of the bottom area will vanish, finally revealing the fourth column of Boxes.

The Green Cover Midgame Trap in Marble Sort Level 685

Clearing the yellow cover feels great, but the board immediately hits you with a nasty midgame shift. As you continue clearing the second column, a brand-new green knitted cover will suddenly appear, locking down column 2 completely.

This changes the entire flow of Marble Sort Level 685. The right side is now open, but your center-left is frozen. The jam risk instantly shifts to any colors that belong in column 2.

1. Locate the Green Key: Look at the middle-left side of the Top Tray. Sitting directly next to the left-side Tunnel is a brown marble carrying a green yarn ball. This is your new primary target.
2. Pivot Left: Stop pulling random colors from the right side. You need to dig down the left side of the Top Tray to expose that brown marble.
3. Manage the Conveyor Belt: You will have to pull some blocking colors out of the way. Send them to the Conveyor Belt only if you have a matching bottom Box ready in column 1, 3, or the newly opened column 4.
4. Unlock Column 2: The moment you can safely drop the brown marble holding the green yarn ball into a matching Box, do it. The green cover will dissolve, restoring your access to the second column.

Managing Tunnels and Final Cleanup in Marble Sort Level 685

With both the yellow and green covers permanently gone, the board finally opens up for normal sorting. However, you still have the Tunnels and the remaining yarn balls to deal with.

1. Clear the Remaining Keys: You will see a purple yarn ball on an orange marble, a light blue yarn ball near the top, and a pink yarn ball on the right edge. Prioritize clearing the marbles holding these balls as soon as their matching Boxes are exposed. Leaving them too long risks another sudden column lockdown.
2. Bleed the Tunnels Slowly: The two blue Tunnels marked with a "3" will start spitting out hidden marbles as you clear the pieces in front of them. Do not rapidly tap the front pieces just to see what is inside the Tunnel. If you blind-pull, the Tunnel will eject marbles that don't match your current open Boxes, instantly clogging the Conveyor Belt.
3. Finish Front-to-Back: Always check the top layer of your bottom Boxes before pulling from the Top Tray. If a color is not currently active on the bottom, leave it in the tray.

Keep your belt clean, respect the yarn ball locks, and carefully dig toward those hidden keys to conquer the board.