Marble Sort Level 11 Walkthrough: Twin Tunnel Ambush
Marble Sort Level 11 walkthrough: take the free front row, crack eight Mystery Boxes, and time both Dark Blue Tunnels so the payload never floods the belt.
Levels · 11
Marble Sort Level 11 Walkthrough: Twin Tunnel Ambush
Level 11 Board Overview: A Free Opening with Teeth Behind It

Level 11 greets you with the friendliest front row you have seen in a while — and that is exactly the setup. Orange and Yellow own the front of the Top Tray, four columns wide: two Orange blocks inside, two Yellow blocks outside. Below, the receiver Boxes ask for Yellow, Orange, Orange, Yellow. A flawless match.
Then the board stops being nice. Right behind that front line sits a solid block of eight Mystery Boxes. And in the two top corners of the tray, a pair of Tunnels marked with a 3 sit on a heavy stash of Dark Blue marbles. Dark Blue and Light Blue dominate the back half of this level, and you cannot see any of it yet.
The shape of the run: a free start, a blind middle, and a Tunnel timing test at the end.
The Trap in Marble Sort Level 11
- The free front row makes you play fast. Clearing four blocks in four taps feels great, and then you are staring at eight question marks with no plan. The level is built to punish that momentum.
- The lower Boxes are layered against you. Under the first row hides Yellow, Orange, Yellow, Yellow — and deeper down, a thick Dark Blue Box buried in the far-left column, Green and Dark Blue in the middle columns, Light Blue on the right.
- The Tunnels look like late-game loot and act like a trap. Once the middle clears, they sit exposed and tempting. Tap one before a Dark Blue Box is front and center, and its marbles hit the Conveyor Belt with no destination. That is a jam you do not recover from.
- The middle of the tray is thin. Behind the mystery zone, the center columns hold just one Yellow and one Light Blue. There is very little slack anywhere on this board.
Marble Sort Level 11 Step-by-Step Walkthrough
Discipline first, speed later. Do not tap anything until you have read the front rows.
Opening: take the gift, then stop

- Tap the two outer Yellow blocks and the two inner Orange blocks from the front of the tray.
- Watch them slide into the front Boxes — Yellow, Orange, Orange, Yellow — a perfect four-for-four clear.
- Put your finger down. The second Box layer steps up: Yellow, Orange, Yellow, Yellow.
- Let the eight Mystery Boxes in the middle of the tray flip over.
- Read what you actually got. Release only colors that match the Yellow and Orange Boxes now sitting in front — do not assume the reveal will be convenient.
- Do not touch either Tunnel. Right now they are bait, full stop.
Mid-game: feed the belt, then wake one Tunnel
- Work the remaining Yellow and Orange blocks out of the tray’s center until you expose the Light Blue block at the top middle-right.
- Wait for a Dark Blue Box to be fully exposed at the front of its column. No destination, no Tunnel.
- Tap the left Tunnel. Its Dark Blue marbles pour onto the belt and — because you waited — sort straight into the open Box.
- Release the newly revealed Green and Light Blue blocks only as their matching lower Boxes shift to the front. The deep Green Box in the middle-right column is a common roadblock; dig to it deliberately.
- Keep the right side of your Conveyor Belt empty-ish. If mismatched colors pile up there, the right Tunnel becomes unplayable.
Cleanup: the second Tunnel and the final sweep
- Tap the right Tunnel only when the belt has at least three free slots.
- Feed the Dark Blue payload into the last Dark Blue Box.
- Drop the top middle-right Light Blue block into the Light Blue Box at the bottom right to trigger the final clear.
- Mop up the remaining Green matches. Slow taps, verify the Box color, done.

Level 11 Tips Recap
- A perfect front row is a trap door, not a gift — take it, then reassess before tapping again.
- A Tunnel is only safe when its color’s Box is already waiting in front. Wait, then pop.
- Belt space on the right is reserved for Tunnel two. Spend it on anything else and the endgame locks up.
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