Marble Sort Level 345 Walkthrough & Solution

Level 345 Board Overview: The Mystery-Capped Tray

Level 345 plays on the tile/block-grid board, and it hides most of itself at the start. Six columns stack the upper tray, but the tops are not honest: grey ’?’ mystery tiles cap the middle columns — one at the top of column 2, one at the top of column 3, and another buried halfway down column 5. Right in the center, at column 4, a dark wrapped crate with a yellow ribbon seals the middle of the tray and blocks whatever sits behind it.

What you can read at the start is the color distribution around the edges. Green sits at the top of the far-left column, Orange at the top of column 4, and Yellow caps column 5. The rest of the visible tray mixes Light Green, Light Blue, Pink, Light and Dark Purple, Brown, and a couple of White tiles. Four tiles carry a white wrench icon — Green, Orange, a Grey, and a Light Blue — marking them as something more than an ordinary tile, so treat them as special and spend them deliberately. A cluster of green balls also drifts over the center-right of the tray as the level begins.

The receiver row is four columns of Boxes with a front and back row each. The opening front row asks for Purple, Green, Green, and Orange, with a Purple, Red, Green, and Green sitting behind them. The catch: the second Green Box starts locked under a padlock icon, so one of your three early Green targets is off-limits. The conveyor below is already loaded too — five Orange tiles queued on the left, then batches of Green and Pink riding the track on the right.

The Trap in Marble Sort Level 345

The board is built to make you reveal before you can sort. Here is the layout:

• Mystery ’?’ tiles cap the middle columns: three of them hide the tops of columns 2, 3, and 5. You cannot plan the center of the tray until you tap them, and a bad reveal jams the belt.
• The wrapped crate seals the center: column 4’s crate blocks the middle of the tray, splitting the board into a left half and a right half for the opening.
• The second Green Box is padlocked: the front row asks for Green twice, but only one Green Box is open. The locked one stays sealed until the midgame.
• Purple is double-booked but buried: Purple has a front and a back Box, yet the visible Purple tiles sit under Green, Brown, and mystery tiles at the far left.
• The conveyor starts pre-loaded with Orange, Green, and Pink: that matches the opening Boxes, but the belt fills fast if you park Brown, White, or Yellow on it — none of those have a Box yet.

Marble Sort Level 345 Step-by-Step Walkthrough

Reveal the tray before you commit to it. Follow the release order.

Opening: feed the open Boxes

1. Tap the Green wrench tile at the top of the far-left column straight into a Green Box. It is the cleanest drop on the board.
2. Drop the Orange from the top of column 4 into the front Orange Box, then keep it fed with the five Orange tiles already queued on the conveyor.
3. Peel the mystery ’?’ tiles off the tops of columns 2 and 3. If a reveal matches Green, Orange, or Purple, drop it immediately; if not, leave the column and come back.
4. Tap the Purple tiles in the far-left column into the front Purple Box — they sit under the Green top, so clear down to them.
5. Ignore the Yellow tops, the Brown under column 2’s mystery tile, and the White tiles in the middle — none of them have a Box in the opening rows.
6. Play the tray’s edges until the Boxes cycle. The wrapped crate in the center means the left and right halves have to be solved separately at first.

Midgame: let the Boxes rotate

Once the opening colors clear, the front row cycles and the locked Green Box finally opens. The mid-solve frames show Yellow, Light Green, and Pink Boxes joining the rotation, with the conveyor now running Red, Brown, Blue, Orange, Green, and Light Green in batches.

7. Feed the locked Green Box the moment it unlocks — the Green batch riding the conveyor finishes it in one pass.
8. Cycle through the newly opened Boxes in order: Yellow, then Light Green, then Pink. Feed each one only while its Box sits in the front row.
9. Clear the Brown tile that the column 2 mystery tile was hiding once a Box for it cycles forward.
10. When a mixed cluster of Blue, Green, Purple, and Red tiles forms in the lower center of the tray, treat it as a single block: tap it only when its color matches the front Box.
11. Leave the locked tiles on the grid alone. The padlocked Green and Yellow tiles stay sealed until the game opens them for you.

Cleanup: finish the stragglers

By the end of the solve the tray is nearly empty. The final frames show only top-row tiles remaining: a couple of Green and locked tiles on the left, Yellow and Pink on the right, with the Yellow, Green, Pink, and Purple Boxes all partially filled.

12. Work the last Green tiles into the Green Box, then fill the Pink Box once it opens — it is empty in the endgame frames and ready for a full run.
13. Drop the remaining Yellow and Purple into their Boxes as they cycle to the front.
14. The final frame of the video is still an active board, so the tail of the solve is just matching the top-row leftovers: reveal the last ’?’ tiles, feed the open Boxes in order, and the level closes itself.

Level 345 Tips Recap

• Green, Orange, and Purple own the front-row Boxes at the start; the conveyor’s Orange, Green, and Pink batches back up exactly that order. Everything else is bait.
• Peel the mystery ’?’ tiles early, but only drop a reveal whose color already has an open Box.
• The wrapped crate splits the board in half — solve the left and right edges separately until the Boxes cycle and the center opens.
• Never fight the locks: the padlocked Green Box and the locked top tiles open on the game’s schedule, not yours.