Marble Sort Level 345 — Walkthrough and Solution

Level 345 is the surprise bag and double lock trap. The grey Surprise Bags in the middle are a decoy; the real key is clearing the front row and unlocking both bottom locks before touching them.

Level345
DifficultyMedium
Priority routePurple → Orange
Watch forPurple

▶ Video walkthrough of Marble Sort level 345, then the step-by-step below.

⚡ Quick clear

Purple → Orange. Hidden boxes turn every tap into a guess.

Marble Sort Level 345 is a puzzle where the top tray holds a jumble of Purple, Orange, Pink, Lime Green, Yellow, and Blue, but the danger comes from a cluster of grey Surprise Bags that sit near the center. The winning move is to ignore those bags entirely at the start and focus on the exposed bottom row of the top tray, which is your only safe entry point. Clear that row to reach the keys that unlock the two bottom columns, and only then should you pop the bags one pair at a time.

The top tray is shaped unevenly, with more weight on the right side and a flat line of marbles along its lower edge. That lower edge holds, from left to right, Purple, Yellow, Lime Green, Pink, Purple, and Orange. Above that safe line, two rows contain grey Surprise Bags, and mixed among them are marbles that carry silver keys. Those keys sit on Green, Orange, Pink, Lime Green, and Blue blocks, scattered from the upper left down to the lower right. The bottom has four columns: the far left starts with Purple, then Lime Green, then a locked Purple box; the second column starts with Orange, then Pink, Orange, Purple; the third starts with Pink, then Lime Green, then a locked Lime Green box; the far right starts with Orange, then Lime Green, Lime Green, Pink.

Marble Sort Level 345 Walkthrough

The four bottom boxes demand specific colors: the left column wants Purple on top, but it is blocked by a Lime Green marble and then a lock; the second column wants Orange, then Pink, Orange, Purple; the third column wants Pink, then Lime Green, then a lock; the right column wants Orange, then Lime Green, Lime Green, Pink. The immediate challenge is that the left and third columns are sealed until you find their keys, so you must use the second and fourth columns as your main dumping grounds early on.

The biggest trap is the grey Surprise Bags. If you tap them too soon, they will spill random colors like Brown, Blue, or Green onto your Conveyor Belt. Since your bottom boxes are currently asking for Purple, Orange, and Pink, those random colors will have nowhere to go, and the belt will jam, leaving you stuck. Therefore, you must resist tapping any bag until both locks are broken and you have extra space to absorb the surprises.

How to Beat Marble Sort Level 345 — Step-by-Step

Phase one: Clear the front row and unlock the left column

  1. Tap the bottom-left Purple marble from the top tray and drop it into the Purple box in the far left column.
  2. Tap the bottom-right Orange marble and drop it into the Orange box in the far right column.
  3. Tap the bottom Pink marble and guide it into the Pink box in the third column.
  4. Slide the remaining bottom-row marbles (Purple, Yellow, Lime Green) down to clear space, but do not tap any Surprise Bags yet.
  5. Find the key on the Pink block on the lower left side and drop it to the belt; it will unlock the Purple lock in the left column.

Phase two: Open the right lock and manage the belt

  1. Look for the key on the Blue block on the lower right side; send it down as well to unlock the Lime Green lock in the third column.
  2. Now that both locks are open, use the newly freed boxes to dump any mismatched colors from the belt, but keep the belt from filling up.
  3. Drop Lime Green marbles from the top tray to clear the Lime Green boxes that were blocking the locks.
  4. Use the second column as a temporary storage for any extra marbles, matching them to the top active box (Pink or Orange) to free up space.

Phase three: Pop the Surprise Bags and finish

  1. Now you can tap the grey Surprise Bags, but only one pair at a time.
  2. Let the spilled marbles land on the belt and immediately match them into the bottom boxes, especially the unlocked left and third columns.
  3. If a bag drops Brown or Blue, search for a matching box deep in the columns and park them there.
  4. Sweep the remaining keys from the top left (Green) and top right (Orange) and drop them to clear the final layers.
  5. Use the far right column to absorb any leftover marbles, and pace your last releases to clear the board.

Tips & tricks

  • Always clear the bottom row of the top tray before touching any Surprise Bag.
  • Keep an eye on the Conveyor Belt capacity; if it is full, you are stuck, so prioritize matching any loose colors immediately.
  • Use the second column as a spare dump for colors that do not fit elsewhere, but keep it from blocking your progress.

Common mistakes

  • Tapping the Surprise Bags early, which floods the belt with unmanageable colors.
  • Ignoring the keys and trying to brute-force the locks, which wastes moves and fills the belt.
  • Forgetting to clear the Lime Green boxes in the bottom columns before they block the locks.

Marble Sort Level 345 FAQ

Why does my Conveyor Belt flood on Marble Sort Level 345?

Because you tapped the grey Surprise Bags too early, releasing random colors like Brown or Blue that have no matching open box, so they pile up on the belt.

Which color do I clear first on Marble Sort Level 345?

Clear the Purple and Orange marbles from the bottom row of the top tray first, as they match the active boxes in the left and right columns.

How many moves does it take to clear Marble Sort Level 345?

The number of moves varies, but you must unlock both bottom locks before popping any Surprise Bags, so plan for at least 20 to 30 moves.

Do I need boosters to beat Marble Sort Level 345?

No, boosters are not required if you follow the correct order: clear the front row, unlock the locks, then manage the Surprise Bags carefully.

What happens if I pop a Surprise Bag too early on Marble Sort Level 345?

If you pop one early, the belt will fill with random colors that have no matching box, causing a jam that is hard to recover from, often forcing a restart.

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