Marble Sort Level 299 Walkthrough & Solution

Level 299 Board Overview: Surprise Bag Ring and Center Lock Trap

The verified walkthrough identifies the opening board as Surprise Bag Ring and Center Lock Trap. The first confirmed moves are: Open by selecting the dark block at the tray’s bottom line to top off and empty the dark receiver in the far-left lane, which also empties the green receiver in the middle-right lane. Then: Immediately choose the lower-center yellow block to clear the yellow receiver that the green receiver had been hiding. The next safe order is recorded below so the belt does not fill with bait.

The Trap in Marble Sort Level 299

• Opening bait: Give every surprise bag a wide berth, because no receiver is ready for a random color and a bag spilling red right now would plug the belt.
• Board order: Check the newly revealed Mystery Boxes after the first wave, and treat whatever color they expose as your new priority target.
• Belt discipline: Use only the first verified clears here; do not spend belt space on a color without an active receiver.

Marble Sort Level 299 Step-by-Step Walkthrough

Opening: follow the safe first clears

1. Open by selecting the dark block at the tray’s bottom line to top off and empty the dark receiver in the far-left lane, which also empties the green receiver in the middle-right lane.
2. Immediately choose the lower-center yellow block to clear the yellow receiver that the green receiver had been hiding.
3. Give every surprise bag a wide berth, because no receiver is ready for a random color and a bag spilling red right now would plug the belt.

Midgame: open the next receiver path

After the opening clears, let the next exposed groups move only when their receiver is ready.

4. Check the newly revealed Mystery Boxes after the first wave, and treat whatever color they expose as your new priority target.
5. If a question box flips to violet or cyan, start pulling the visible violet and cyan stones from the middle of the tray.
6. Empty the stone sitting right under the yellow key, which trips the lock-and-key and opens the tray’s right side and its solid stone blocks.

Cleanup: finish the remaining sequence

The final phase follows the remaining source order. Pause whenever the belt starts to fill.

7. With the lock gone and several colored receivers now live, lean on them to poke the outer ring, and wait to open another bag until the first one’s stones are fully sorted.
8. In the final squeeze, draw the leftover solid yellow stones from the unlocked right side to clear the deep stacks, keep the belt as a short-term holding zone without passing the halfway mark, and clear the corner bags one at a time to finish.

Level 299 Tips Recap

• Give every surprise bag a wide berth, because no receiver is ready for a random color and a bag spilling red right now would plug the belt.
• Empty the stone sitting right under the yellow key, which trips the lock-and-key and opens the tray’s right side and its solid stone blocks.
• In the final squeeze, draw the leftover solid yellow stones from the unlocked right side to clear the deep stacks, keep the belt as a short-term holding zone without passing the halfway mark, and clear the corner bags one at a time to finish.