Marble Sort Level 351 — Walkthrough and Solution

Level 351 is the iced box wall and double tunnel trap. The blue column in the middle is a decoy; focus on the bottom queue and clear the front rows first to avoid jamming your belt.

Level351
DifficultyMedium
Priority routePink → Blue
Watch forPink

▶ Video walkthrough of Marble Sort level 351, then the step-by-step below.

⚡ Quick clear

Pink → Blue. The Pink wall blocks the row behind it.

Marble Sort Level 351 presents a congested board where a towering central blue column tempts an early clear, but doing so will clog your Conveyor Belt. The key is to methodically satisfy the lower Box demands, starting with the front row, and only later address the blue marbles once their matching Boxes appear.

The upper area splits into a left cluster and a right cluster, with the blue column between them. Several Iced Boxes dot both sides, trapping Green, Red, and White marbles. Two Tunnels, each marked with a 3, hide three unknown stacks; one sits mid-left, the other mid-right. The lower section opens with demands for Pink, Orange, Pink, and Green, followed by Brown and Orange Boxes behind.

Marble Sort Level 351 Walkthrough

Start by reading the bottom queue: Pink, Orange, Pink, Green. The front row of the Top Tray contains dense clusters: an Orange block on the left, a Pink block near it, a Brown block in the center, and another Pink block to the right. Do not touch the blue column yet.

The central blue column is a trap: no Blue Box is available at the start, so dropping any blue marble will fill your belt and end the run. Work only with the colors the queue asks for.

How to Beat Marble Sort Level 351 — Step-by-Step

Clearing the Front Line

  1. Tap the Pink block on the lower right of the Top Tray, sending it to the first Pink Box.
  2. Tap the Orange block on the lower left, filling the Orange Box in the second slot.
  3. Tap the other Pink block from the front area to satisfy the second Pink Box.
  4. Leave the blue column untouched.

Breaking Ice and Opening Tunnels

  1. After clearing the front, the lowest Iced Boxes crack, revealing Cyan and Purple marbles on the right.
  2. Tap the Brown block in the front-center to fill the upcoming Brown Box.
  3. Focus on the right Tunnel: tap the Cyan and Red marbles that block its exit. Each tap releases a hidden marble, repeat three times to empty it.
  4. Monitor your belt; only drop colors that have a matching Box or enough empty space.
  5. Pull the freed Purple and Red marbles on the right, but hold Green marbles on the left until the Green Box is at the front.

Final Clearance

  1. Once the mid queue clears, the board pushes Purple, White, and Cyan Boxes into the active slots.
  2. Empty the left Tunnel by clearing its blocking Red and Green marbles, revealing White pieces.
  3. As the last Iced Boxes melt, drop White and Cyan marbles into their matching Boxes.
  4. When the Blue Boxes finally slide forward, clear the entire central blue column to finish the level.

Tips & tricks

  • Always read the bottom queue before making any move.
  • Keep your Conveyor Belt as empty as possible to store temporary colors.
  • Use the Tunnels to your advantage: they reveal hidden marbles that often match upcoming Boxes.

Common mistakes

  • Tapping the blue column early, which floods the belt.
  • Ignoring the order of bottom Box demands and pulling mismatched colors.
  • Failing to manage belt space when Iced Boxes melt and release unexpected colors.

Marble Sort Level 351 FAQ

Why does my Conveyor Belt flood on Marble Sort Level 351?

It floods because you likely tapped the central blue column before any Blue Box appeared, filling the belt with unusable marbles.

Which color do I clear first on Marble Sort Level 351?

Clear Pink first, as the bottom queue demands Pink in the first slot, and a Pink block is readily available in the front row.

How many moves does it take to clear Marble Sort Level 351?

There is no fixed move count; the level requires careful planning and varies with each playthrough, but expect to clear around 40-60 marbles.

Do I need boosters to beat Marble Sort Level 351?

No, boosters are not necessary if you follow the correct order and manage your belt space wisely.

What happens if I tap the blue column early on Marble Sort Level 351?

Tapping the blue column early will fill your Conveyor Belt with blue marbles that have no matching Box, likely causing you to lose the level.

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