Marble Sort Level 734 — Walkthrough and Solution

Level 734 is the giant center chain and key trap. The real threat in this level is the central key, which, once taken, unleashes a flood of colors that can jam your belt unless you set up the bottom boxes first.

Level734
DifficultyHard
Priority routeBlue → Purple
Watch forBlue

▶ Video walkthrough of Marble Sort level 734, then the step-by-step below.

⚡ Quick clear

Blue → Purple. The lock won't open without its key.

Marble Sort Level 734 is a puzzle that tempts you to clear the side columns early, but doing so will clog your Conveyor Belt. The key to victory is to methodically carve a path to the golden key while keeping the belt clear, then manage the aftermath with careful sorting.

The board is dominated by a massive horizontal chain across the middle five columns of the Top Tray. The golden key sits at the very top center, above a row of Hidden Boxes and a rainbow-layered stack. The far left and far right columns are stacked with loose colors, but they are a trap. The front row of the Top Tray, from left to right, has Dark Blue, Green, Red, Purple, Pink, White, and Orange. Below, there are four columns of bottom Boxes; their top layer shows Light Blue, Dark Blue, Light Green, and Dark Blue again. Further down, a black link connects two boxes, meaning they will drop together when they reach the top of the queue.

Marble Sort Level 734 Walkthrough

The bottom Boxes demand colors in a specific order: first Light Blue, then Light Green, then Dark Blue, and so on. The front row of the Top Tray provides the initial safe moves: Dark Blue, Green, Red, Purple, Pink, White, and Orange. However, the center columns hide the key, and the side columns are full of tempting colors that will only cause trouble if pulled too early.

The biggest imbalance is that after the key is taken, the center releases a storm of Yellow, Green, Purple, and White, while the bottom boxes might be asking for Orange or Red. If you haven't prepared the bottom board to accept those colors, the Conveyor Belt will jam immediately. Therefore, you must clear as many bottom boxes as possible before breaking the chain.

How to Beat Marble Sort Level 734 — Step-by-Step

Phase one: Open the middle

  1. Tap the Dark Blue block from the front row into the Dark Blue bottom Box in the second column.
  2. Tap the Green block from the front row to open the second column in the Top Tray.
  3. Check the bottom Boxes: you need Light Blue and Light Green clears. If those colors are not in the center, carefully pull them from the far left or right stacks, but only what you need to clear one Box.
  4. Continue clearing the Purple, Pink, and Red blocks in the center, focusing on exposing the blocks directly beneath the golden key.
  5. When the Connected Boxes rise, ensure you have both required colors ready in the Top Tray before loading them onto the belt, so you don't choke it.

Phase two: Break the chain

  1. Tap the golden key to snap the chain.
  2. Let the rockets launch; they will remove random chunks, but reassess the Top Tray immediately.
  3. The Hidden Boxes will reveal their colors. Only tap them if they match a current bottom Box demand.
  4. Attack the rainbow-layered stack one layer at a time: it starts with Purple, then Green, then Yellow, then White. Only tap it when you have an open bottom Box for that specific layer.
  5. Keep the Conveyor Belt clear: if a color is not immediately solvable, leave it in the tray and focus on clearing bottom boxes that match the colors on the belt.

Phase three: Clean up the edges

  1. Now that the center is mostly empty, safely pull the Yellow, Orange, and Light Blue blocks from the tall side columns to finish the remaining bottom Boxes.
  2. Always clear the front-most bottom Box that matches the colors choking your belt. For example, if four Yellows are on the belt, dig out a Yellow Box to flush them.
  3. Continue matching colors until all bottom boxes are filled and the level ends.

Tips & tricks

  • Take your time before grabbing the key; a prepared bottom board is your best defense against belt floods.
  • Use the rockets to your advantage – they can clear obstacles, but they also scramble the layout, so re-plan after they fire.
  • Treat the rainbow stack as a timed release; never tap it unless you have a matching open box.

Common mistakes

  • Tapping the side columns too early, which floods the belt with colors you can't use yet.
  • Grabbing the key without clearing enough bottom boxes, leading to a sudden jam from the center colors.
  • Ignoring the Connected Boxes – if you don't have both colors ready, they'll clog the belt.

Marble Sort Level 734 FAQ

Why does my Conveyor Belt flood on Marble Sort Level 734?

The belt floods when you take the golden key without preparing the bottom boxes, causing a rush of Yellow, Green, Purple, and White from the center that you can't match quickly.

Which color do I clear first on Marble Sort Level 734?

Start by clearing Dark Blue and Green from the front row to open the middle columns, then focus on Light Blue and Light Green bottom boxes.

How many moves does it take to clear Marble Sort Level 734?

There is no fixed move count, but a typical successful run takes around 150-200 taps depending on how the rockets and hidden boxes behave.

Do I need boosters to beat Marble Sort Level 734?

No boosters are required, but using a color bomb or shuffle can help if you get stuck with a jammed belt.

What happens if I clear the side columns early on Marble Sort Level 734?

Clearing the side columns early floods your belt with loose colors, causing blockages and making it nearly impossible to finish the level.

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