Marble Sort Level 311 — Walkthrough and Solution

Marble Sort Level 311 presents a large board with a central icy formation that blocks access to many marbles. To beat it, you must clear the outer columns first, then thaw the center to collect four keys and unlock the rightmost column.

The top tray holds a big frozen block in the middle, containing Red, Blue, Pink, Orange, and Green marbles. Two offset columns flank the ice: one has a Blue key and an Orange key, while the far left has Dark Grey and a Green key, and the far right has Blue, Purple key, and Pink. Two tunnels marked '3' sit at the top. Below, the bottom boxes are arranged in four columns: column 1 has Blue, Purple, Green, Blue, Orange; column 2 has Brown, Blue, Green, Orange, Purple; column 3 has Orange, Green, Green, Dark Grey, Blue; column 4 (locked) has Pink, Brown, Pink, Pink, Green. Along the bottom edge are textured blocks: Green, Blue, Brown, Purple, Pink.

Marble Sort Level 311 Walkthrough

The bottom boxes require Blue, Brown, Orange, and Pink in the front row. Column 4 is locked until you collect four keys. The initial safe moves are to drop the bottom edge Blue and Brown blocks, and pull a Pink from the far right. The Green and Purple keys on the outer columns should be grabbed early, but beware of Orange: too much Orange will jam the Conveyor Belt.

The critical trap is the Orange and Purple cluster in the middle layers. If you pull them too soon, your belt fills up. So, focus on clearing the outer columns and collecting keys before touching the center.

How to Beat Marble Sort Level 311 — Step-by-Step

Phase one: Clear the Front and Outer Columns

1. Tap the large Blue and Brown blocks on the bottom edge to send them into the matching bottom boxes.
2. Slide the Pink at the bottom of the far-right column down to the active Pink box.
3. Guide the Green key from the far-left column into the Conveyor Belt.
4. Route the Purple key from the far-right column into the Conveyor Belt.
5. Do not tap the Orange marbles near the bottom edge yet; they can wait.

Phase two: Thaw the Center and Secure Keys

1. Drop the inner-left and inner-right columns to break the ice on the center marbles.
2. Free the Red, Blue, and Pink marbles from the left side of the center, and send the Blue key and Orange key to the Conveyor Belt immediately.
3. Keep the belt from jamming: only pull colors that match the currently open bottom boxes (Blue, Brown, Orange, Pink).
4. Once all four keys (Green, Purple, Blue, Orange) are processed, the lock on column 4 opens.

Phase three: Flush the Right Side and Survive the Tunnels

1. Now that column 4 is open, aggressively drop Pink and Brown marbles into those boxes to free belt space.
2. As you clear upper layers, the two '3' tunnels will activate and release more marbles.
3. Keep the belt nearly empty before the tunnels drop, then match the incoming colors to the remaining bottom boxes to finish.

Tips & tricks

• Always clear the front-row bottom boxes first to create space for more marbles.
• Use the Conveyor Belt sparingly; only send marbles that match an active box.
• Prioritize keys as soon as they are accessible to unlock the right column.

Common mistakes

• Pulling Orange marbles too early, which clogs the belt and blocks progress.
• Ignoring the outer keys, leaving the right column locked and causing a dead end.
• Failing to empty the belt before the tunnels release, causing overflow.

Marble Sort Level 311 FAQ

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