Marble Sort Level 450 — Walkthrough and Solution

Marble Sort Level 450 presents a board with two Safes at the top, each marked with a '6', meaning you must clear 12 Boxes below before they open. The Top Tray holds rows of Pink, Green, Red, and Blue marbles, some locked behind numbered Boxes ('3' and '2'), and three grey Surprise Bags sit in the middle, adding randomness. The bottom area has four columns: left is Green, Red, Pink, Purple; second is Blue, Blue, Purple, Red; third is all White (four Boxes); right is Red, Blue, Pink, Purple. The key is to feed White marbles to the third column whenever possible, while making safe clears to unlock the Safes.

The trap is the all-white column that demands four White marbles, but only one White is initially accessible in the bottom row of the Top Tray. Many players focus on clearing side columns, which clogs the belt. Instead, you must methodically clear front Boxes to count toward the Safe counters, but always prioritize White when it appears. The board is a test of patience; rushing or releasing wrong colors early will jam the Conveyor Belt.

Marble Sort Level 450 Walkthrough

The bottom Boxes have these demands: Left Column needs Green, Red, Pink, Purple; Second Column requires Blue, Blue, Purple, Red; Third Column is four White Boxes; Right Column wants Red, Blue, Pink, Purple. The third column is the main objective—clear it to free space.

The imbalance is that White is scarce early, and the Surprise Bags can drop random colors, but you must resist clearing non-White columns until you have a safe path.

How to Beat Marble Sort Level 450 — Step-by-Step

Phase one: Initial Safe Clears

1. Tap the single Green marble in the second row of the Top Tray, sending it to clear the Green Box at the front of the far-left column.
2. Release the Red marble from the third row to clear the Red Box at the front of the far-right column.
3. Send the Blue marble from the bottom row of the Top Tray to clear the Blue Box at the front of the second column.
4. Drop the White marble from the bottom row into the all-white column (third column) as your first of four clears.
5. Do not touch Pink or Purple marbles yet—they will only clog the belt.

Phase two: Revealing Surprise Bags and Unlocking Safes

1. Clear the second Red marble from the third row to the remaining Red Box in the left column, which also reveals a Surprise Bag.
2. React to the Surprise Bag: if it contains White, immediately send it to the white column; if not, let it sit on the belt briefly.
3. Continue clearing Boxes to reduce the counters on the numbered Boxes ('3' and '2'); once they reach zero, they become regular Blue marbles and can be cleared.
4. Always prioritize White whenever it appears from the grid or Surprise Bags.
5. After clearing 12 total Boxes, both Safes unlock, releasing a batch of White and Green marbles.

Phase three: Finishing the Level

1. Send the newly released White marbles from the Safe to clear the remaining White Boxes in the third column.
2. Use the Green marbles from the Safe to clear any remaining Green Boxes.
3. With the White column gone, release Pink, Purple, and Blue marbles one by one to their matching Boxes, completing the level.

Tips & tricks

• Keep an eye on the Conveyor Belt length; if a marble has no open Box, don't release it.
• When a Surprise Bag appears, let it sit if it doesn't match an open Box—don't force a release.
• Count your clears to know exactly when the Safes will open; plan your moves accordingly.

Common mistakes

• Clearing side columns early, which exposes colors that have no destination and jams the belt.
• Ignoring the all-white column, leading to a pile-up of White marbles later.
• Releasing marbles from Surprise Bags without checking if a matching Box is open.

Marble Sort Level 450 FAQ

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