Marble Sort Level 313 Walkthrough & Solution

Level 313 Board Overview: Lock and Key Arrow Trap

The verified walkthrough identifies the opening board as Lock and Key Arrow Trap. The first confirmed moves are: Open by tapping the lowest Purple tile in column four and then the bottom Light Blue tile sitting in column five, both of which drop freely even though the padlock chains the center. Then: Pull the Light Blue off the bottom of column seven, then swing your attention over to the far-left columns. The next safe order is recorded below so the belt does not fill with bait.

The Trap in Marble Sort Level 313

• Opening bait: Take the lowest Green tile from column one and then the Pink tile from column two, and feed them into the newly unlocked White and Green Arrow Boxes on the left flank.
• Board order: Keep climbing strictly up columns one and two, and leave the Black and Light Blue Arrow Box columns over on the right untouched.
• Belt discipline: Use only the first verified clears here; do not spend belt space on a color without an active receiver.

Marble Sort Level 313 Step-by-Step Walkthrough

Opening: follow the safe first clears

1. Open by tapping the lowest Purple tile in column four and then the bottom Light Blue tile sitting in column five, both of which drop freely even though the padlock chains the center.
2. Pull the Light Blue off the bottom of column seven, then swing your attention over to the far-left columns.
3. Take the lowest Green tile from column one and then the Pink tile from column two, and feed them into the newly unlocked White and Green Arrow Boxes on the left flank.

Midgame: open the next receiver path

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

4. Keep climbing strictly up columns one and two, and leave the Black and Light Blue Arrow Box columns over on the right untouched.
5. Poke the last pink tile tucked in the top-left corner — collecting it snags the key; the center chain shatters and reveals a tall Green, Blue, Black, and Brown stack.
6. Drain the Purple and Green tiles out of the exposed middle first, and only poke right-side Arrow tiles when you need a Black or Light Blue piece to fill an active box.

Cleanup: finish the remaining sequence

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

7. Clear the remaining Black and Brown boxes, then drop the last Arrow tiles from columns six and seven, and finish by matching the Light Blue and Green marbles that remain.
8. Finish the remaining receiver boxes in the verified source order and keep the conveyor clear.

Level 313 Tips Recap

• Take the lowest Green tile from column one and then the Pink tile from column two, and feed them into the newly unlocked White and Green Arrow Boxes on the left flank.
• Drain the Purple and Green tiles out of the exposed middle first, and only poke right-side Arrow tiles when you need a Black or Light Blue piece to fill an active box.
• Finish the remaining receiver boxes in the verified source order and keep the conveyor clear.