Marble Sort Level 151 Walkthrough & Solution

Level 151 Board Overview: Two Crates Seal the Center

Level 151 opens with the middle of the board walled off. Two wooden crates sit in the middle of the two center columns, covering four cells between them, so you can only touch the top and bottom marbles of those columns on the first pass. Everything else in the 6-column tray is reachable, but the opening feels narrower than it looks.

The tray carries a wide roster: Yellow, Purple, Green, Pink, Orange, and Brown share space with White and two blue shades (a pale White-ish blue and a brighter Cyan). A row of gray key markers runs across the top cells of the tray, with a few more scattered lower down, marking cells that are not ordinary marbles. Down on the receiver row, one of the boxes starts padlocked, so your usable homes are even scarcer at the start.

The conveyor queue is already loaded with color groups waiting to be fed, and the receiver boxes cycle their requests as deliveries complete. The midgame rotation asks for Pink, White, Orange, Cyan, and Red; by the end state the completed boxes read Red, Green, Yellow, and Purple. Knowing which colors get homes when is the whole level.

The Trap in Marble Sort Level 151

• The twin crate wall: columns 2 and 5 are blocked mid-height, hiding four cells total. The Pinks and Browns trapped behind them stay out of reach until you deliver enough to lift the crates.
• The key-marked cells: the top row and a few mid-tray cells carry gray key markers. Treat them as structural, not loot — they do not sort like normal marbles.
• The padlocked box: one receiver box begins locked. Early on you have one fewer active home than the board suggests, so every marble you tap must have a live box waiting.
• Brown and Green are bait: in the first box rotation neither Brown nor Green has a home. Tap them early and they sit on the belt, jamming the queue while the boxes ask for other colors.

Marble Sort Level 151 Step-by-Step Walkthrough

There is no shortcut around the crates — clear what is reachable first and let the boxes rotate toward the blocked colors.

Opening: peel the reachable columns

1. Start on the left edge. Column 1 gives you a Yellow on top and a Purple and Green lower down — feed only the colors the front row is actively asking for.
2. Move to column 3 and clear its two blues and the White between them; these have homes in the early rotation.
3. Take the Cyan at the top of column 4 and the Pink at its base.
4. On the far right, tap the Yellow near the top of column 6; the darker marble beneath it stays put for now.
5. Peel the top marble of column 2 (Pink) into an open Pink slot — it is one of the few useful marbles above the crate there.
6. Do not touch the Brown on top of the column 5 crate, and skip Green entirely. Neither has a box in this rotation.

Midgame: the crates lift and the center opens

Once the early deliveries clear, the crates disappear and the hidden middle cells come into play. The receiver row now cycles Pink, White, Orange, Cyan, and Red.

7. Feed the freed cells from columns 2 and 5, using the new space to line up the mid-rotation colors.
8. Deliver the Orange group as the Orange box comes forward — Orange has no earlier home, so it is the one color worth holding for.
9. Complete the Whites and Cians first; they cluster in the center-left and clear fast.
10. The Red box stays active through this stretch — gather the Reds from the middle columns and feed all four as a clean group.
11. Leave the Brown on the right and any Green in the tray untouched until the next rotation flips the boxes.

Cleanup: finish the rotation

The end-state frames show the boxes resolving to Red, Green, Yellow, and Purple — so the final rotation finally asks for the colors that were bait earlier.

12. When the boxes cycle to Yellow and Purple, clear the Purples from the left column and the center, then the Yellows from columns 1 and 6.
13. Only now is Green safe to deliver; its box arrives in the last rotation, so drain it with the other stragglers.
14. Finish with the belt: match each queued group to the active box in order, and the last cells empty themselves.

Level 151 Tips Recap

• The two center crates define the opening — play the outer columns first and never try to force a marble out from behind a crate.
• Brown and Green have no home in the first rotation; parking them on the belt stalls the whole queue.
• Match your belt to the boxes: the queue delivers in color groups, so feed groups in the same order the boxes request them.
• The padlocked box and key-marked cells make the early board tighter than it looks — patience beats speed.