Marble Sort Level 348 Walkthrough & Solution

Level 348 Board Overview: The Mystery-Walled Tray

Level 348 opens with most of its board hidden. A 3x3 block of gray ’?’ mystery crates seals the top-left of the tray, and a locked tile marked with an X pins a Pink marble at the top-middle-right. Until you start tapping, you are playing a board you can only see half of.

Four tubes sit at the bottom, already stacked with mixed marbles: Yellow, Green, and Purple in the first, a double Orange stack plus Purple in the second, Blue, Green, and Orange in the third, and a Dark Green base with Blue and Light Blue in the fourth. The visible grid tiles are thin pickings — an Orange, a Green, a Light Blue, a Purple, a Red, and the locked Pink.

The conveyor queue does the real talking at the start: it arrives in color batches of Yellow, Light Blue, Pink, and Purple. Later in the run the belt shifts to triple batches of Light Blue, Light Pink, and Purple, with a six-pack of Brown bringing up the rear.

The Trap in Marble Sort Level 348

• Nine mystery crates wall off the top-left: a full 3x3 block of ’?’ tiles. Every reveal is a gamble, and clearing them is the only way the board opens up — the fifth tube shows up only after the crates start falling.
• The locked Pink tile: the top-middle-right tile is blocked with an X. It looks like a free Pink, but it will not budge until the tiles around it are cleared.
• Red has no tube at the start: the Red tile sits in the grid and the Pink rides the queue, but no opening tube holds either color. Feed them early and you bury a tube you cannot fix.
• The queue is a promise, not a menu: Yellow, Light Blue, Pink, and Purple arrive first, but Brown only shows up at the back of the belt. If a color is not in the visible queue, it has no business in your tubes.

Marble Sort Level 348 Step-by-Step Walkthrough

Opening: feed the four tubes

1. Tap the grid Orange into the second tube, which already carries two Oranges — it is the most committed tube on the board.
2. Drop the grid Purple onto a Purple-topped stack; both the first and second tubes can take it.
3. Send the grid Light Blue to the fourth tube, where Light Blue already sits on top of the Dark Green base.
4. Clear the locked Pink tile’s neighbors first — freeing the tiles beside it releases the X and makes the Pink playable.
5. Feed the opening queue in its batches: Yellow to the first tube, Light Blue to the fourth, and hold Pink until a tube opens for it.
6. Do not touch the grid Red or Green yet. No tube top can take them, and parking them buries a tube.

Midgame: crack the mystery wall

Once the crates start falling, the board changes shape. Two crates are gone and a fifth tube unlocks, the locked tiles at the center-right finally open, and the queue starts delivering triples of Light Blue, Light Pink, and Purple.

7. Peel the ’?’ crates one at a time and drop each reveal only if a matching tube top is showing.
8. Feed the Light Blue triple straight into the Light Blue tube — three in a row clears a full tube in one pass.
9. Play the Light Pink batch as soon as a tube with Light Pink surfaces; the mid-solve stacks show Light Pink riding on top of Green and Red.
10. Send the Purple triple wherever a Purple top is waiting; Purple tends to arrive in runs, so keep the Purple tubes clean between batches.
11. Leave the Brown six-pack alone until its tube appears — Brown only enters the board near the end, so there is no reason to rush it.

Cleanup: ride the belt home

The end frame of the run shows the tray nearly stripped: the grid holds only the last crates, the fifth tube is empty and waiting, and the remaining tubes still carry mixed Orange, Red, Pink, and Light Blue stacks that need separating.

12. Work each mixed tube from the top down, moving top marbles only onto matching tops — never drop a marble onto a tube that would bury a color you still need.
13. Cycle the belt and feed the final Light Blue, Light Pink, and Purple marbles as their tubes empty; let the Brown six-pack finish the last tube.
14. Keep the fifth tube reserved as your free column: empty tubes are the only way to shuffle mislaid stacks, so do not fill it unless a batch is complete.

Level 348 Tips Recap

• The 3x3 mystery wall and the locked Pink tile hide half the opening board — reveal in small doses and only commit to colors you can place.
• Four tubes open the level with clear homes for Orange, Purple, Light Blue, and Yellow; Red, Pink, and Green are bait until their tubes surface.
• The queue delivers in batches — a full triple clears a tube in one pass, and the six-pack of Brown arrives last, so never chase it early.
• Keep an empty tube in reserve for shuffling; the endgame is won by cycling the belt, not by force-feeding mixed stacks.