Marble Sort Level 97 — Walkthrough and Solution

Level 97 is the double lock and key fortress. A double Lock and Key hides in a wall of '?' boxes, with the two keys trapped under the top corners — so clear Orange and Red first, hunt Dark Blue and White, then climb the edges to the keys.

Level97
DifficultyEasy
Priority routeOrange → Purple
Watch forOrange

▶ Video walkthrough of Marble Sort level 97, then the step-by-step below.

⚡ Quick clear

Orange → Purple. The lock won't open without its key.

The middle of this board is solid grey, and in its centre sits a two-layer set of Connected Boxes held shut by a purple-and-yellow Lock and Key. There's no way around it — the whole thing has to come apart tile by tile.

The keys that open those locks sit in the two top corners, buried under heavy Tunnels. The front of the tray shows Orange, Pink, Light Blue, Green and Red, but the Boxes on your front line want Dark Blue, Red, Orange and White — a bad mismatch, with Mystery Boxes threaded through every column.

Marble Sort Level 97 Walkthrough

Grabbing Pink, Light Blue and Green just because they're loose means they sit on the belt for ages — you can't clear those bottom colours until Dark Blue and Orange are handled. The plan is to dig the outer edges of the grey block for Dark Blue and White, clear the front lines, then climb the side columns to the yellow and purple keys.

Don't rush the front row. The order you peel the hidden layers decides whether you live through the midgame.

How to Beat Marble Sort Level 97 — Step-by-Step

Survive the front row

  1. Send the front-left Orange into the Orange Box in column three.
  2. Send the front-right Red into the Red Box in column two.
  3. Stop pulling from the front row — Pink, Light Blue and Green are all bait.
  4. Tap the grey Hidden Boxes right behind where the Orange and Red used to sit, hunting for Dark Blue and White.
  5. Only drop a colour that matches the active bottom row, or when you have belt space to store it safely.
  6. As each bottom Mystery Box reveals, find its match in the lower rows of the grey block.

Break the Lock and Key

  1. Concentrate on clearing the extreme left and right vertical edges of the tray.
  2. Column two opens two Purple targets — there's plenty of Purple in the middle-left and middle-right.
  3. Climb the left edge to the yellow key, drop it, and the yellow lock holding the lower Connected set shatters.
  4. Climb the right edge to the purple key, drop it, and the purple lock holding the upper set breaks.
  5. Leave the top Tunnels alone until the centre is fully cracked.

Empty the Tunnels

  1. Clear the now-unlocked Connected Boxes in the dead centre to flush matching colours and reveal the last bottom Boxes.
  2. Three Tunnels sit up top, each holding four drops.
  3. Trigger a Tunnel only when the active Box needs a colour that's nowhere else on the board.
  4. Clean up the Pink, Light Blue and Green you left at the start — their Boxes are finally active.
  5. Cycle the last Tunnel colours into the remaining targets to close out.

Tips & tricks

  • Only Orange and Red match at the start — the rest of the front row is bait until later.
  • The keys are on the outer edges, so climb the left and right columns before touching the Tunnels.
  • Read every Mystery reveal as information — it tells you what the midgame wants.

Common mistakes

  • Pulling the loose Pink, Light Blue and Green early — they sit on the belt with no Box until the front lines clear.
  • Triggering a Tunnel before the centre is cracked, dumping colours you can't use.

Marble Sort Level 97 FAQ

Why does my Conveyor Belt flood on Marble Sort Level 97?

You pulled the loose Pink, Light Blue or Green from the front row. They have no Box until Dark Blue and Orange are resolved.

Which color do I clear first on Marble Sort Level 97?

The front-left Orange into column three, then the front-right Red into column two — the only two starting matches.

How many moves does it take to clear Marble Sort Level 97?

Three phases — the front row, the two keys on the outer edges, then emptying the three Tunnels. A longer, methodical grind.

Do I need boosters to beat Marble Sort Level 97?

No. Dig the edges for the keys and the locks break on their own. Boosters won't reach the top-corner keys for you.

What happens if I tap the Tunnels early on Marble Sort Level 97?

They dump four colours you can't use, flooding the belt before the centre locks are even broken.

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