Marble Sort Level 27 Walkthrough & Solution
Marble Sort Level 27 walkthrough: disarm the left-wall Tunnel trigger, dig the right side first, and beat the Light Pink flood with our step-by-step solution.
Levels · 27
Marble Sort Level 27 Walkthrough & Solution
Level 27 Board Overview: The Hair-Trigger Left Wall

Level 27 is a real difficulty spike, and the danger is concentrated in one corner. The Top Tray is lopsided: the right side is a jagged staircase you dig down column by column, while the left side is a flat vertical wall with two Tunnels embedded in it. The board is swimming in Light Pink, Mint Green, Dark Red, and Orange.
Your openers on the bottom row of the tray are four blocks: Dark Red, Orange, Purple, and Light Pink. The starting receiver Boxes want Light Pink, Light Pink, Mint Green, and Orange.
Sounds generous. It isn’t. The lower Tunnel on the left wall is loaded with Light Pink marbles, and it’s blocked by a Light Pink block with a Dark Red block under it. That Dark Red block is the single most dangerous tap on the board.
The Trap in Marble Sort Level 27
Here’s the exact failure chain the level is built around:
- The bait: you tap the bottom-left Dark Red. It goes to the belt. That frees the Light Pink block above it, which you naturally tap into a waiting Light Pink Box.
- The trigger: the empty space in front of the lower Tunnel sets it off. It fires three more Light Pink marbles onto your belt.
- The jam: by then your active Boxes are Mint Green, Dark Grey, and Orange — nothing that takes Light Pink. The Mint Greens you need are buried in the third row under Purple and Dark Grey, so you must park junk on the belt to reach them. With three Tunnel marbles already hogging slots, the belt overflows. Run over.
The fix is sequencing. Dig the right staircase first, cycle the Boxes until a fresh Light Pink Box rotates into the front row, and only then touch the left wall.
Marble Sort Level 27 Step-by-Step Walkthrough
Follow this release order exactly. The whole level is order of operations.
Opening: right side only, left wall off-limits

- Tap the Orange block on the bottom row. It clears the Orange Box in the fourth column.
- Tap the Light Pink block on the bottom right. It fills one of the two Light Pink Boxes.
- Stop. The bottom-left Dark Red stays exactly where it is.
- Your active Boxes now want Mint Green, which lives in the third row on the right. Time to dig.
Mid-game: dig out the Mint Greens
- Tap the Purple block from the bottom row onto the Conveyor Belt. It’s parking, not a clear.
- Tap the two Dark Grey blocks from the second row onto the belt. Because you never triggered the Tunnel, there’s room to hold them.
- The Mint Green blocks in the third row are now exposed. Tap them straight into the active Mint Green Boxes.
- Watch the receiver stack shift: as Mint Green and Orange clear out, a fresh Light Pink Box rises into the front row. That’s your green light.
Endgame: trigger the Tunnels on your terms
- Tap the Dark Red block in the bottom-left corner. It parks on the belt and will match Dark Reds you uncover shortly.
- Tap the Light Pink block sitting above where it was. It drops into the waiting Light Pink Box.
- The lower Tunnel fires its three Light Pink marbles — but now the Boxes are cycling in your favor, so they’re absorbed within seconds instead of jamming the belt.
- Repeat the same logic for the upper Tunnel: clear the middle of the tray, confirm a matching Box is ready, then pull the blocking block away and let it dispense. Keep the belt clear and the rest sorts itself out.

Level 27 Tips Recap
- Never trigger a Tunnel before a Box exists to catch what it fires.
- Parking Purple and Dark Grey on the belt is safe only because the Tunnel hasn’t gone off — that order is the whole level.
- When the board offers you an obvious match in a suspicious corner, ask what it unblocks before you tap.
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