Marble Sort Level 103 Walkthrough & Solution

Level 103 Board Overview: The Buried Royal Blue

Level 103 opens on a sparse, asymmetric board: a five-column tray floats over a long white belt, and that belt feeds four receiver Boxes at the bottom. Almost every column is a single marble, which makes the one exception impossible to miss — the second column from the left stacks four marbles deep: Teal on Blue on Red on Royal Blue.

The rest of the tray is a scatter. The far-left column parks a lone Purple, the center column a lone Teal, the fourth column a Blue sitting on a Yellow, and the far-right column a single Blue. That is the whole opening board: nine marbles spread across five columns, with one buried prize.

Down below, the four Boxes are already capped with their current target colors — Purple, Green, Blue, and Purple — and each one already holds a few mixed marbles from earlier deliveries. The belt between the tray and the Boxes starts the level busy: a stream of Blue marbles is already riding toward the queue, so the Blue channel is loaded before you make your first tap.

The Trap in Marble Sort Level 103

The board is rigged to punish impatient taps. Here is the layout:

• The four-deep second column: the Royal Blue is locked under Teal, Blue, and Red. It is the marble you actually want to start with, and every marble above it has to be stripped off first.
• The pre-loaded Blue queue: the belt opens with Blues already in transit and more Blues parked in the columns. Feed the belt another Blue too early and the bottom strip clogs, stalling every delivery behind it.
• The tempting singles: the lone Teal in the center and the lone Blue on the right look like free points, but their Boxes are mid-cycle at the start — release them too early and they ride the belt loop for a long time.
• Fast Box cycling: eight colors rotate through four Boxes. A marble tapped at the wrong moment can lap the belt twice before its cap comes around.

Marble Sort Level 103 Step-by-Step Walkthrough

Pace is everything here. Let the belt drain before you queue more marbles.

Opening: dig out the Royal Blue

1. Tap the Royal Blue at the base of the second column. It is the only buried marble on the board, and it needs the longest head start.
2. Wait for it to clear the belt — it takes a full loop before the Blue channel frees up. Do not tap again while the queue is still full.
3. Tap the Red that now sits at the base of the second column.
4. Tap the Teal above it once the belt has room.
5. Move to the center column and tap its lone Teal.
6. Tap the last Blue of the second column to finish the stack.

Midgame: feed the four cycling Boxes

Once the deep stack is gone, the tray starts cycling fresh colors through the columns — Orange drops into the left column, more Reds and Teals arrive, and the fourth column switches from Blue to Green.

7. Tap the Orange that appears atop the left column.
8. Take the Orange that shows up in the left-center column next.
9. Release the Purple from the left column once its Box is live.
10. Tap the Red from the left-center column.
11. Feed the Green that settles into the fourth column.
12. Tap the Blue from the far-right column.
13. Keep the Yellow from the fourth column moving as its Box comes around.

Cleanup: keep the belt short

The endgame narrows the board down to one or two marbles per column — Red, Teal, and Orange riding into the last box cycles.

14. Tap one marble at a time and let each delivery finish before the next; the tray thins to a Blue and an Orange.
15. Let the final burst of Yellows drain through the belt; the Boxes empty and the victory screen arrives.

Level 103 Tips Recap

• The Royal Blue is the whole level — it sits four deep in the second column, so start there and strip the stack in order.
• The belt opens Blue-heavy. Tap into it only when the bottom queue has drained.
• The center Teal and the right Blue are bait while their Boxes are mid-cycle — patience, not speed, clears them.
• Feed the belt in single-marble bursts; a full queue stalls every Box behind it.