Marble Sort Level 722 — Walkthrough and Solution

Level 722 is the connected box trap. The real challenge of Marble Sort Level 722 is the pair of linked lower containers that force you to deliver two shades at once, so the key is to clear the front boxes without ever picking up a stray color.

Level722
DifficultyHard
Priority routeOrange → Purple
Watch forOrange

▶ Video walkthrough of Marble Sort level 722, then the step-by-step below.

⚡ Quick clear

Orange → Purple. Only drop a colour when its box is ready.

Marble Sort Level 722 presents a two-tier layout: an upper area split by vertical bars into three sections, and a lower set of four container columns. The top-left section holds a loose group of White, Yellow, Red, and Purple marbles over two large blocks of Orange and Light Blue. The top-right section is a tall stack containing Light Pink, Light Blue, Light Green, White, Purple, and Orange. In the middle of the upper area, three vertical rods lock down grey boxes with question marks—these are surprise containers that become accessible only as you clear the front boxes below.

Below, the four columns start with a front row that asks for Purple, Orange, Orange, and Purple from left to right. Directly behind that front row, the first two columns are physically linked by thick black bars; these linked boxes drop together, so you must supply both required colors simultaneously. The board is packed, but the real danger is that the left side of the conveyor belt will fill up quickly if you tap any marble that does not directly feed a front box.

Marble Sort Level 722 Walkthrough

Your first task is to clear the four front boxes without touching any other marble. The front row demands, from left to right, Purple, Orange, Orange, and Purple. Do not tap Light Green or White marbles early, because they will clog your belt and leave no room for the required colors.

The specific trap is on the left side: after the front row is gone, the two linked boxes behind it will demand Orange and Light Blue together. If you have only one of those colors available, you will fill one box partially and then have to scramble to find the other color while your belt is jammed.

How to Beat Marble Sort Level 722 — Step-by-Step

Phase one: Clear the front row

  1. Tap the Orange marble that is exposed at the very bottom of the right-side stack. Send it down to the center-right Orange box (the second from the right).
  2. Tap the Purple marble that is exposed on the left side of the upper tray. Route it to the far-left Purple box.
  3. Carefully dig into the right-side stack to locate the next Purple marble. Deliver it to the far-right Purple box.
  4. Leave the Yellow, Red, and Light Pink marbles alone; they are not needed yet and would only take up space.
  5. Once the front row is cleared, the linked boxes behind it become active.

Phase two: Break the left chain

  1. As you clear the front boxes, the vertical rods in the middle start to lift. Tap the surprise grey boxes cautiously to reveal hidden marbles.
  2. You now need to feed Orange and Light Blue into the first linked pair (columns 1 and 2). Look for those colors in the top tray and route them directly to the linked boxes.
  3. Keep your conveyor belt under control: never pick up a marble that is not Orange or Light Blue until the chain is broken.
  4. After the first linked pair is satisfied, the large blocks of Orange and Light Blue in the upper-left section become accessible. Unload them into the next set of linked boxes.

Phase three: Final cleanup

  1. The rightmost vertical rod is the last obstacle; it holds back a final group of Orange marbles.
  2. Clear the Red and Light Green boxes in column 4 (the rightmost column) to drop that rod.
  3. Now free the remaining Light Pink and White marbles from the top-right stack and place them into the still-open boxes.
  4. Finally, flush the last Orange marbles into the remaining slots to empty the board and complete the level.

Tips & tricks

  • Always scan the linked boxes before you make a move; know what two colors you need to deliver together.
  • Use the surprise boxes as a bridge: they often contain the exact colors you need to satisfy a linked pair.
  • Keep your conveyor belt as empty as possible by only tapping marbles that directly match an active box.

Common mistakes

  • Picking up Light Green or White early: these colors are not needed until late, so they will fill your belt and block critical moves.
  • Feeding a linked box with only one color: you must have both colors ready before you start filling, or you will get stuck.

Marble Sort Level 722 FAQ

Why does my Conveyor Belt flood on Marble Sort Level 722?

Your belt floods because you tap marbles that are not immediately needed, especially Light Green and White, which are only required in the final cleanup. Always check the active boxes and only tap a marble if it matches one of them.

Which color do I clear first on Marble Sort Level 722?

Clear Orange and Purple first because they fill the four front boxes. Start with the exposed Orange at the bottom of the right stack, then the Purple on the left side.

How many moves does it take to clear Marble Sort Level 722?

There is no fixed move count; it depends on how efficiently you avoid extra taps. A typical clear takes about 40 to 50 moves, but you can do it in fewer if you never tap a wasted marble.

Do I need boosters to beat Marble Sort Level 722?

No, boosters are not required, but they can help if you get stuck. The level is beatable without them if you follow the step-by-step plan and manage your belt carefully.

What happens if I tap a Light Green marble early on Marble Sort Level 722?

If you tap a Light Green marble early, it will occupy a slot on your conveyor belt for a long time, because Light Green is not needed until the very end. This reduces your available space and can cause you to run out of room for essential moves, often leading to a failed attempt.

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