Marble Sort Level 346 Walkthrough & Solution

Level 346 Board Overview: The Doubling Tray

Level 346 opens on a tall marble tray split by two green x2 Multiplier Gates. One gate sits across the left-center columns and the other across the right-center columns, with a tall Pink stack standing between them — anything you route through a gate lands on the conveyor doubled. Around the gates the tray stacks roughly seven columns deep with Purple far left, Yellow beside it, Dark Blue and Pink toward the middle, and Light Blue and Orange on the right.

The Conveyor Belt is already busy before you make your first tap. A long Light Blue run leads the queue — and more Light Blues are mid-fall as the level starts — with a Yellow batch and then an Orange batch trailing behind it. That pre-loaded load is the whole opening puzzle: those colors have volume coming, and their Boxes only rotate to the front as the row cycles.

Down below, the four receiver Boxes open asking for Green and White on the left, with the warm colors cycling in behind them. The belt’s own cargo — Light Blue, Yellow, Orange — is waiting for its Boxes to come around, and the tray’s lower rows carry grey locks that keep part of the board sealed until the early Boxes clear.

The Trap in Marble Sort Level 346

The board is rigged to make you feed the belt faster than the Boxes can empty it. Here is the layout:

• The belt opens pre-loaded: Light Blue heads the queue with more already falling, and Yellow and Orange ride behind it. Tap extra copies of those colors before their Boxes rotate to the front and the queue jams before a single Box clears.
• Only Green and White have open Boxes at the start: the first row of receivers leads with those two on the left. Every other visible color is bait until the row cycles.
• The x2 gates double everything: a marble that passes through a Multiplier Gate becomes two on the belt. Route one wrong color through and you just spent two belt slots on a marble with no home.
• Grey locks seal the lower rows: part of the tray stays locked until the opening Boxes clear. You cannot plan the full board from the first frame, so dig in release order, not greed.
• Mixed-depth columns: no stack is a single color, so every useful tap exposes whatever sits underneath — usually a color that is not ready yet.

Marble Sort Level 346 Step-by-Step Walkthrough

Drain the belt before you load it. Follow the release order.

Opening: let the moving runs land

1. Do not tap anything at first — the Light Blues mid-fall and riding the belt are your only free clears. Let that run drain as the Light Blue Box reaches the front row.
2. Tap the Yellow marbles stacked in the left-center columns so they join the Yellow batch on the belt — but only while a Yellow Box leads the row.
3. Hold the far-right Orange column. The Orange batch already on the belt has to clear before you add a single marble more.
4. Spend the opening on Green and White instead: pick off the Green and White marbles sitting in the lower rows into the two open left Boxes. These are the only fully safe taps on the board.
5. Leave Purple, Pink, Dark Blue, and both x2 gates completely alone.

Midgame: the locks release and the gates earn their keep

Once the opening row clears, the grey locks across the lower rows pop and the columns feed freely. The belt turns over to long runs of Red and then Green, and the Boxes start cycling fast — this is where the level actually begins.

6. Keep the Red and Green runs solid: feed the matching stacks as they surface so the conveyor stays in clean single-color stretches.
7. Now the x2 gates pay out. When a Pink Box is front and center, tap the Pink marbles from the center column and route them through the left gate — the doubled Pinks fill the Box twice as fast.
8. Do the same with the Dark Blue columns mid-tray once a Dark Blue Box is asking. Route them through a gate only when the Box is already open; a doubled Dark Blue with no home is a two-slot jam.
9. Work the remaining locks as they clear — every Box you finish opens another sealed pocket of the tray.
10. Keep the Light Blues honest. Extra Light Blues keep surfacing from the columns, but only tap them while a Light Blue Box is actually leading the row.

Cleanup: last columns, one at a time

With the center of the tray drained, the late board shrinks to the outer columns still holding full stacks — the far-left Purples, the Yellows beside them, the Dark Blues, and the far-right Orange.

11. Play strictly in column order from here. Finish the Purple stack on the far left as its Box comes around.
12. Follow with the Yellow column beside it — those two left columns drain back to back.
13. Feed the two Dark Blue columns mid-tray next, in pairs, whenever both Dark Blue Boxes are open at once.
14. Let the last Light Blues fall through the gate when their Box leads the row; the far-right Orange column is the final tap of the level.
15. Keep the belt short — one column at a time — and the last stacks ride home on their own as the final Boxes fill.

Level 346 Tips Recap

• The belt opens pre-loaded with Light Blue, Yellow, and Orange — drain those runs before you add more of the same color.
• Only Green and White have open Boxes in the opening row; everything else waits for the cycle.
• Never double a marble through an x2 gate unless its Box is front and center — the gates are the fastest way to jam the belt.
• The endgame is pure column order: Purple, Yellow, Dark Blue, Light Blue, and the far-right Orange last.