Marble Sort Level 299 Walkthrough Solution | Marble Sort 299

Marble Sort Level 299 Guide: The Surprise Bag Ring and Center Lock Trap

This board is an absolute trap right out of the gate. You are staring at a massive diamond-shaped Top Tray wrapped almost entirely in grey Surprise Bags. The colors you actually need are locked up. Yellow, green, black, and light blue dominate the early visible board. But the real dictator of this match is that massive yellow Lock and Key dead center, cutting off your access to the right side of the board.

You cannot brute force this. If you start panic-tapping the outer ring, you will die to Conveyor Belt overflow in ten seconds. We have to surgically dismantle the center column to drop that key, reveal the bottom Mystery Boxes, and survive the midgame.

The Center Key pattern in Marble Sort Level 299

Let’s look at the exact nightmare sitting in front of you. The Top Tray is a diamond grid. The entire outer border is walled off by grey Surprise Bags hiding unknown marble colors. You have a handful of solid colors visible in the middle—mostly cyan, yellow, purple, and black.

Right in the middle of all this sits the Lock and Key. The yellow key mechanism stretches to the right, heavily guarding a block of solid colors. You cannot access those right-side marbles until the key drops.

Now look at your bottom Boxes. The setup dictates your exact opening moves. You have four columns to manage:

• Far Left Column: Black sitting on top of a Mystery Box, followed by Light Blue.
• Middle-Left Column: Purple covering a Mystery Box, then Green, then Yellow.
• Middle-Right Column: Green covering two Yellows, then a Mystery Box.
• Far Right Column: Light Blue covering Black, a Mystery Box, and a Yellow.

The trap is obvious. The game wants you to tap the Surprise Bags because the solid colors you need for Purple and Light Blue are buried. Do not do it. Those bags will dump random marbles onto your Conveyor Belt. Since your front Boxes are highly restricted to Black, Purple, Green, and Light Blue, any stray red or orange marbles will instantly jam your line. Your entire priority is matching the available bottom front row with the absolute bottom row of the Top Tray to carve a path to the key.

Marble Sort Level 299 Step-by-Step Walkthrough

Follow this release sequence exactly. Order is everything here. You have to clear the junk in the front before the board opens up.

Carving the Center in Marble Sort Level 299

Your first taps dictate whether you win or lose. You need to drop the blocks holding up the Lock and Key, but you must clear the bottom Boxes to make room first.

1. Look at the bottom row of the Top Tray. You have accessible Yellow, Green, and Black marble blocks.
2. Tap the Black block first to fill and clear the front Black Box in the far-left column.
3. Tap the Green block next. This clears the front Green Box in the middle-right column.
4. Clearing that Green Box exposes a Yellow Box underneath it. Immediately tap the bottom-center Yellow block in the Top Tray to clear it.
5. Keep your hands entirely away from the Surprise Bags. You have zero open Boxes for random colors. If a bag dumps red right now, your Conveyor Belt will clog and you are dead.
6. Look at the spaces you just cleared in the Top Tray. You should now have a path leading upward toward the tile holding the yellow key.

Surviving the Mystery Box Midgame in Marble Sort Level 299

Clearing that first wave fundamentally changes the board. The left side drops, revealing a Mystery Box. The middle-right drops, bringing up another Yellow Box. Now the board applies real pressure.

7. Check the newly revealed Mystery Boxes. Whatever color they expose is your new priority target.
8. If the Mystery Box reveals Purple or Light Blue, you are in luck. You can now start picking off the visible Purple and Light Blue blocks in the center of the Top Tray.
9. Clear the block directly underneath the yellow key. Once that block falls, the Lock and Key triggers. This is your midgame turning point.
10. The right side of the Top Tray is now unlocked. You finally have access to the solid color blocks previously held hostage by the lock mechanism.
11. With the lock gone and multiple different colored Boxes now open on the bottom, you finally have the safety net needed to touch the outer ring. Tap exactly one Surprise Bag.
12. Wait and watch what colors dump onto the Conveyor Belt. Route them into the open Boxes. Never tap a second Surprise Bag until the marbles from the first one are completely sorted.

Managing the Final Column Squeeze in Marble Sort Level 299

The late game gets highly claustrophobic. You will have deep columns in the bottom Boxes requiring very specific colors, mainly Yellow, Light Blue, and whatever the final Mystery Boxes turned into.

13. Shift your focus to the deeper bottom rows. You have a thick layer of Yellow Boxes stacked in the middle-left and far-right columns.
14. Pull the remaining solid Yellow blocks from the unlocked right side of the Top Tray to clear these deep stacks.
15. Use the Conveyor Belt as a temporary holding zone. If a Surprise Bag dumps two colors you need and one you don't, let the bad color sit on the belt. Just ensure you never let the belt fill past the halfway mark.
16. Pick off the remaining top corner Surprise Bags one by one. By this point, you should have enough empty Boxes rotating in to catch whatever random colors the game throws at you. Clear the final stragglers to win.