Marble Sort Level 729 — Walkthrough and Solution

Marble Sort Level 729 is a puzzle where the top tray and bottom boxes seem mismatched. You must prioritize exposing buried Dark Blue marbles early, while keeping the Conveyor Belt from clogging.

The top tray's bottom row holds, from left to right: Orange, Red, Cyan, Light Green, Dark Green, and Orange. The lower area has three active boxes on the right demanding Dark Blue, Light Green, and Dark Blue, but the left column is sealed by a green knitted cover. Two rockets tied to Cyan and Yellow yarn balls sit mid-tray, and a blue Gift Box with a red ribbon counts down from 5 in the top left.

Marble Sort Level 729 Walkthrough

The three playable bottom boxes, left to right, ask for Dark Blue, Light Green, and Dark Blue. The bottom row of the top tray offers no Dark Blue, only Orange, Red, Cyan, Light Green, Dark Green, and Orange.

The core trap is that you need Dark Blue, but it's buried higher up. Dropping the outer Orange blocks early fills the belt with useless colors, choking space before you can clear the Dark Blue boxes. Also, the Gift Box opens after five drops, spilling five new blocks if the belt is full.

How to Beat Marble Sort Level 729 — Step-by-Step

Phase one: Dig for Dark Blue

1. Tap the Light Green block on the bottom row of the top tray; it slides into the middle active box.
2. Route the Red block from the middle-left of the bottom row to the Conveyor Belt.
3. Send the Cyan block from the same area to the belt as well.
4. Drop the Dark Blue block revealed in the fourth column into the right-side Dark Blue box.
5. Guide the Dark Green block from the bottom row to the belt, opening access to higher central blocks.
6. Clear central blocks until you uncover another Dark Blue, feed it to the second Dark Blue box, emptying it.

Phase two: Free the rockets and open the left side

1. Once the first Dark Blue box is gone, new boxes appear. Drop the two Orange blocks from the outer edges of the top tray into matching boxes.
2. Tap blocks beneath the two rockets, releasing the Cyan and Yellow yarn balls.
3. The rockets launch and destroy the green knitted cover on the bottom left, revealing a column starting with a Light Green box.
4. While doing this, monitor the Gift Box counter; ensure your belt has at least three empty slots before it hits zero.

Phase three: Handle the Gift Box spill and drain the belt

1. When the Gift Box opens, five new blocks appear. Pause pulling from the top tray.
2. Focus on the Conveyor Belt, using the newly opened left boxes to clear stored blocks like Purple, Red, or leftover Cyan.
3. Prioritize clearing any block that has sat on the belt since early, matching it to an open box.
4. Once the belt is down to one or two blocks, resume pulling from the top tray to finish the remaining colors.

Tips & tricks

• Always keep the Conveyor Belt less than half full; the Gift Box adds five blocks unexpectedly.
• Use the left column boxes as a dump for any belt trash once the rockets open it.
• Memorize the order of bottom row colors: Orange, Red, Cyan, Light Green, Dark Green, Orange, to plan your first taps.

Common mistakes

• Dropping both Orange blocks early fills the belt and causes a jam before you can access Dark Blue.
• Ignoring the Gift Box counter leads to a surprise overflow when it opens.
• Neglecting to clear belt blocks before pulling more from the top tray creates a permanent bottleneck.

Marble Sort Level 729 FAQ

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