Marble Sort Level 681 Walkthrough Solution | Marble Sort 681

Marble Sort Level 681 Guide: The Arrow Box Divide and Dual Crates

Marble Sort Level 681 is a masterclass in split-board frustration. The center of the board is completely blocked by a massive, unplayable dead zone. This divides your Top Tray into two completely different puzzle logic zones. The left side wants you to pull marbles down. The right side demands you clear from the top up.

Your dominant colors early on are Purple, Light Blue, and Dark Blue. You have two massive Crates hogging crucial real estate in the opposite corners. To make things worse, opposing Iced Boxes sit directly next to those Crates, threatening to lock up your endgame if you ignore them. You cannot just click whatever is free. You have to dismantle this board methodically, side by side.

The Split Board Pattern in Marble Sort Level 681

This layout is incredibly strict. The massive gap in the middle means your left and right sides do not interact. You are basically playing two separate games at the same time, but sharing the same Conveyor Belt.

The bottom Boxes dictate everything. Your absolute front line consists of two Purple and two Light Blue Boxes. Directly behind them is a mixed row of Light Blue, Purple, Green, and Green Boxes. Behind that? A solid wall of Dark Blue. This queue tells you exactly what to hold back. If you pull down Dark Blue marbles too early, they will sit on your Conveyor Belt and kill your run.

The left side of the Top Tray features three columns of downward-pointing Arrow Boxes loaded with Blue, Pink, and Yellow marbles. These are relatively easy to activate once you clear the junk below them. Below these arrows sits a cluster of free marbles: Yellow, Red, Dark Blue, and Light Blue.

The right side is the real trap. It holds columns of upward-pointing Arrow Boxes filled with Green, Pink, Yellow, and Orange marbles. You cannot pull these from the bottom. The arrows point up. That means the marble above the box must be dropped before the box can activate. If you try to force the right side early, you will go absolutely nowhere.

Anchoring both sides are the Crates. A huge wooden crate sits in the top-left corner next to a green Iced Box. Another crate sits in the bottom-right corner next to a yellow Iced Box. You must clear three nearby marbles to break the 'X' on these Crates and reveal the four hidden marbles inside each.

Marble Sort Level 681 Step-by-Step Walkthrough

Follow this exact sequence to survive the split board. Space on the Conveyor Belt is tight. Do not pull marbles unless their matching bottom Box is currently active or next in line.

Cracking the Left Flank in Marble Sort Level 681

Your opening moves must focus on feeding the front line and carving out the bottom-left corner.

1. Target the bottom-left cluster first. Pull the accessible Light Blue and Purple marbles just above the funnel. Route them immediately into the front-row bottom Boxes.
2. Clear out the loose Yellow, Red, Dark Blue, and Light Blue marbles sitting below the central dead zone. Send the Light Blue straight into the remaining front Boxes. Let the Dark Blue sit on the Conveyor Belt temporarily—the Dark Blue bottom Boxes are coming up soon.
3. Activating the downward Arrow Boxes is your next priority. Now that the space below them is clear, tap the Blue, Pink, and Yellow downward Arrow Boxes on the left.
4. Feed the second row of bottom Boxes. As the Purple and Light Blue clear out, the Green bottom Boxes will slide forward.
5. Break the top-left Crate. By clearing the left-side downward Arrow Boxes, you will register enough adjacent clears to strip the 'X' off the top-left crate. Let it pop open to reveal the hidden marbles inside.

Defeating the Upward Arrow Trap in Marble Sort Level 681

With the left side mostly handled, the board dynamic completely flips. You must now tackle the reverse logic on the right.

6. Ignore the bottom of the right side. Do not touch the Red or Orange marbles above the bottom-right Crate yet. They are bait.
7. Clear from the top right. Pull the Blue, Pink, Light Blue, and Brown marbles sitting at the very top right of the Top Tray.
8. Once the marbles above the upward-pointing Arrow Boxes are gone, the chains will unlock. Carefully tap the Green, Pink, Yellow, and Orange upward Arrow Boxes. Send the Green marbles straight into the active Green bottom Boxes.
9. Manage the Conveyor Belt bottleneck. You will now have a massive influx of Dark Blue bottom Boxes sliding into the front row. Feed them using the Dark Blue marbles you freed from the left side and any newly revealed ones from the right.

Shattering the Iced Boxes in Marble Sort Level 681

The endgame requires cleaning up the locked corners. If you ignore the corners, you will run out of matching colors.

10. Thaw the Iced Boxes. As you clear the remaining right-side marbles, you will naturally trigger the bottom-right yellow Iced Box. Do the same for the top-left green Iced Box using the marbles that spilled out of the first crate.
11. Pop the final bottom-right Crate. Clearing the upward Arrow Boxes and the yellow Iced Box will remove the 'X' from the bottom right.
12. Flush the remaining board. Route the final hidden marbles from the second crate into the back rows of Pink, Brown, and Orange bottom Boxes to finish the level.