Marble Sort Level 509 — Walkthrough and Solution

Level 509 is the triple dark blue box trap. The triple Dark Blue Box trap on the first line can end your run fast, but clearing the center Panel '3' opens the whole board.

Level509
DifficultyHard
Priority routeYellow → Blue
Watch forYellow

▶ Video walkthrough of Marble Sort level 509, then the step-by-step below.

⚡ Quick clear

Yellow → Blue. Only drop a colour when its box is ready.

Marble Sort Level 509 is a cross-shaped puzzle where the center is sealed by a Panel marked '3'. The bottom row starts with three Dark Blue Boxes and one Purple Box, and the top tray hides many colors, but the key is unlocking the center by clearing three lower boxes.

The board has a cross-shaped top tray with a central Panel '3'. The left and right sides have grey hidden tiles, and there's a blue Tunnel at the top right. The bottom boxes are: Dark Blue, Dark Blue, Dark Blue, and Purple. Behind them are Green, Yellow, and Orange marbles. The bottom edge of the tray gives easy access to Yellow, Light Blue, Dark Blue, Light Blue, Green, and Dark Blue, but only two Dark Blue are free.

Marble Sort Level 509 Walkthrough

The bottom boxes demand Dark Blue, Dark Blue, Dark Blue, and Purple in that order from left to right. The trap is that only two Dark Blue marbles are immediately available, while the third is tucked on the left arm of the center cross, next to the Panel, blocked by a White and a Green marble. If you grab the easy Yellow or Light Blue marbles first, you fill your belt with colors you can't use yet, leaving no room to dig out that essential Dark Blue.

How to Beat Marble Sort Level 509 — Step-by-Step

Phase one: Secure the first Dark Blue clear

  1. Leave the Yellow and Light Blue marbles on the bottom edge of the tray untouched.
  2. Tap the two free Dark Blue marbles from the bottom edge to send them to the belt, which will fill the first Dark Blue Box partially.
  3. On the left side of the center cross, locate the Dark Blue marble next to the center Panel.
  4. Release the Green marble and the White marble that block it, sending them to the belt to clear the path.
  5. Drop the newly exposed Dark Blue marble to complete the first Dark Blue Box. The Panel counter drops from 3 to 2.

Phase two: Clear the Purple and second Green boxes

  1. After the first clear, a Green Box appears under the first Dark Blue Box. Use the Green marble you parked earlier, plus another Green from the right side of the cross, to fill that Green Box.
  2. Shift to the Purple Box on the far right of the bottom row.
  3. Take the Purple marble from the right arm of the cross (below the Yellow) and another Purple from the upper vertical section of the cross.
  4. Send both Purples to clear the Purple Box, which reveals another Green Box on the right side.
  5. Use the Green marbles now exposed from the top tray to complete that Green Box, achieving your third clear and shattering the center Panel.

Phase three: Finish the remaining boxes

  1. With the center open, you have access to a large cluster of marbles underneath. Use them to match the remaining Dark Blue and Yellow boxes in the lower rows.
  2. Watch the blue Tunnel at the top right; it will activate as the board lowers. When it spits out marbles, match them immediately to keep the belt clear.
  3. For the hidden tiles on the left column, only tap one if your belt has at least three empty slots, to handle any surprise color.
  4. Clear the Orange and Pink boxes that appear from the back of the stack to finish the level.

Tips & tricks

  • Prioritize digging out the third Dark Blue early; ignoring it is fatal.
  • Maintain at least three empty belt slots at all times, especially when dealing with hidden tiles.
  • Use the center unlock to mass-match colors and clear multiple boxes quickly.

Common mistakes

  • Greedily tapping the easy Yellow or Light Blue marbles on the bottom edge, which jams the belt and prevents access to the critical Dark Blue.
  • Forgetting to watch the blue Tunnel drop, letting unexpected colors clog the belt.
  • Rushing to tap hidden tiles without ensuring buffer space on the belt.

Marble Sort Level 509 FAQ

Why does my Conveyor Belt flood on Marble Sort Level 509?

Because you tap the easy Yellow and Light Blue marbles early, filling the belt with colors you can't match yet, and blocking the path to the third Dark Blue.

Which color do I clear first on Marble Sort Level 509?

You clear Dark Blue first, specifically the three Dark Blue boxes on the front row, starting with the two that are already accessible.

How many moves does it take to clear Marble Sort Level 509?

The exact move count varies, but you need roughly 40-50 moves to clear all boxes if you follow the optimal path.

Do I need boosters to beat Marble Sort Level 509?

No, boosters are not required, but they can help if you make a mistake and need to undo a jam.

What happens if I tap the Yellow marble too early on Marble Sort Level 509?

Tapping Yellow early fills a belt slot with a color you can't use yet, leaving insufficient space to dig out the critical third Dark Blue, often leading to a loss.

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