Marble Sort Level 315 Walkthrough & Solution
Marble Sort Level 315 walkthrough: Front Row Trap and Triple Tunnels. Follow the verified order and keep the conveyor clear for the final clears.
Levels · 315
Levels 460–460
Levels 487–487
Levels 500–500
Levels 517–517
Levels 550–550
Marble Sort Level 315 Walkthrough & Solution
Level 315 Board Overview: Front Row Trap and Triple Tunnels

The verified walkthrough identifies the opening board as Front Row Trap and Triple Tunnels. The first confirmed moves are: Open by ignoring the big pink-and-yellow wall on the head row’s left, then reach to the head-right and take the lone textured blue box plus the textured red box into the live blue and red receivers. Then: Fill the live violet receivers in lanes two and four by peeking straight behind the head-left pinks and pulling the violet boxes tucked in the second line. The next safe order is recorded below so the belt does not fill with bait.
The Trap in Marble Sort Level 315
- Opening bait: Spend a single head pink on the belt only when you must free those violets, keeping that trade as small as possible.
- Board order: After the blue, violet, red, and violet receivers vanish, the board shows pink and yellow receivers, so pour the textured pink and yellow boxes down into the fresh bottom slots.
- Belt discipline: Use only the first verified clears here; do not spend belt space on a color without an active receiver.
Marble Sort Level 315 Step-by-Step Walkthrough
Opening: follow the safe first clears

- Open by ignoring the big pink-and-yellow wall on the head row’s left, then reach to the head-right and take the lone textured blue box plus the textured red box into the live blue and red receivers.
- Fill the live violet receivers in lanes two and four by peeking straight behind the head-left pinks and pulling the violet boxes tucked in the second line.
- Spend a single head pink on the belt only when you must free those violets, keeping that trade as small as possible.
Midgame: open the next receiver path
After the opening clears, let the next exposed groups move only when their receiver is ready.
- After the blue, violet, red, and violet receivers vanish, the board shows pink and yellow receivers, so pour the textured pink and yellow boxes down into the fresh bottom slots.
- As the center lane opens with its red, green, and pink pile, take a joined piece only when one of its colors can land in a live receiver, or it chews up two or three belt slots.
- When the middle lane clears, the inward-facing arrows wake, so feed the left wing’s yellow, green, and pink plus the right wing’s green, blue, and green into the lower receivers the moment they become reachable.
Cleanup: finish the remaining sequence
The final phase follows the remaining source order. Pause whenever the belt starts to fill.
- Clear the tiles sitting in front of the three ‘4’ pipes, then let them release four boxes each and drop into the main tray.
- As the deep blue and green surface in lanes two and four, find their exact homes, park any unneeded orange or red up in the tray, and clear the deep greens and blues before anything else to win.

Level 315 Tips Recap
- Spend a single head pink on the belt only when you must free those violets, keeping that trade as small as possible.
- When the middle lane clears, the inward-facing arrows wake, so feed the left wing’s yellow, green, and pink plus the right wing’s green, blue, and green into the lower receivers the moment they become reachable.
- As the deep blue and green surface in lanes two and four, find their exact homes, park any unneeded orange or red up in the tray, and clear the deep greens and blues before anything else to win.
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