Marble Sort Level 303 Walkthrough & Solution

Level 303 Board Overview: Surprise Bag and Iced Box Trap

The verified walkthrough identifies the opening board as Surprise Bag and Iced Box Trap. The first confirmed moves are: Open with the one guaranteed match, tapping the Light Pink marbles in the bottom-left cluster of the central Top Tray to fill and clear the third bottom Box. Then: Treat the green stones at both extreme ends plus the red and brown piles down at the lower-center as decoys, since no active receiver accepts them yet. The next safe order is recorded below so the belt does not fill with bait.

The Trap in Marble Sort Level 303

• Opening bait: With that Light Pink box cleared, tap the four grey Surprise Bags above the bottom clusters to reveal the hidden Orange and Light Blue marbles the remaining front row Boxes need.
• Board order: Immediately route any revealed orange or cyan into the active receivers on the far-left, the second slot in, and the far-right positions.
• Belt discipline: Use only the first verified clears here; do not spend belt space on a color without an active receiver.

Marble Sort Level 303 Step-by-Step Walkthrough

Opening: follow the safe first clears

1. Open with the one guaranteed match, tapping the Light Pink marbles in the bottom-left cluster of the central Top Tray to fill and clear the third bottom Box.
2. Treat the green stones at both extreme ends plus the red and brown piles down at the lower-center as decoys, since no active receiver accepts them yet.
3. With that Light Pink box cleared, tap the four grey Surprise Bags above the bottom clusters to reveal the hidden Orange and Light Blue marbles the remaining front row Boxes need.

Midgame: open the next receiver path

After the opening clears, let the next exposed groups move only when their receiver is ready.

4. Immediately route any revealed orange or cyan into the active receivers on the far-left, the second slot in, and the far-right positions.
5. Clearing the front row reveals the grey Mystery Boxes behind them, and once the bags are emptied, the Iced Boxes lining the inner columns finally come into view.
6. When a receiver calls for blue or pink, line up the free pink and blue stones sitting above the lower green ones to crack the frost and release the frozen pieces.

Cleanup: finish the remaining sequence

The final phase follows the remaining source order. Pause whenever the belt starts to fill.

7. Save the lower-center red and brown piles until the freshly revealed question boxes truly ask for them, since dropping them early would choke the upper flow.
8. In the final phase, alternate between the heavily stacked far left and far right columns, never filling the belt with more than four unassigned marbles, and pull exactly what each newly revealed Box needs to finish.

Level 303 Tips Recap

• With that Light Pink box cleared, tap the four grey Surprise Bags above the bottom clusters to reveal the hidden Orange and Light Blue marbles the remaining front row Boxes need.
• When a receiver calls for blue or pink, line up the free pink and blue stones sitting above the lower green ones to crack the frost and release the frozen pieces.
• In the final phase, alternate between the heavily stacked far left and far right columns, never filling the belt with more than four unassigned marbles, and pull exactly what each newly revealed Box needs to finish.