Marble Sort Level 369 Walkthrough & Solution

Level 369 Board Overview: The Locked and Sealed Tray

Level 369 opens as a packed board, and the first thing you notice is how much of it is hidden. Grey ’?’ mystery tiles sit on the receiver boxes themselves, so the tray starts without a clear target list — the top row reads as a row of question marks until you start feeding. Below them, roughly ten columns are stacked with Red, Purple, Blue, Dark Green, Teal, Yellow, and Pink, mixed with striped two-tone tiles that count toward whichever color they match.

The middle of the board is where the locks live. Yellow key-shaped pieces sit on grey lock bases at several points across the stacks, holding the columns in place until they are unlocked. The bottom of the tray is loaded too: lower columns of Blue, Pink, Green, Red, and Purple sit below the belt line, and a funnel feeds Red marbles from the right onto the conveyor, which is already carrying Dark Red and Teal batches.

The opening shape is not a straight line. Some columns stand full while others start empty, and the mystery tiles plus the locks mean you cannot see the full tray until you interact with it. Reveal the unknowns, unlock the gated stacks, and let the Boxes rotate toward the colors you free.

The Trap in Marble Sort Level 369

The board is rigged to make you feed before you can see. Here is the layout:

• The receiver row starts under ’?’ tiles: the top boxes display mystery tiles instead of clean color requests, so the safest early drops are the colors you can already match by eye. Never assume a target you have not revealed.
• Yellow locks gate the middle stacks: key-and-lock pieces hold several columns in place, and unlocking them drops multiple tiles at once. Unlock carelessly and a column dumps a color with no open Box.
• Striped two-tone tiles blur the picture: the columns mix Pink-Green and Blue-Green striped tiles with solid colors, so a stack’s visible top does not tell you what feeds underneath.
• The funnel loads the belt by itself: Red marbles drop through the funnel onto the conveyor even when you are not tapping, so the queue fills with a color you may not need yet.

Marble Sort Level 369 Step-by-Step Walkthrough

Clear the mystery tiles before you commit to a plan. Follow the release order.

Opening: reveal the receivers first

1. Start by feeding the colors you can positively identify — the visible Red, Blue, and Teal stacks match the colored strips on the receiver row despite the ’?’ covers.
2. Treat every ’?’ tile as an unknown: drop a revealed tile only when its color has a matching receiver slot; otherwise leave it on the column.
3. Keep the lower Blue, Pink, Green, Red, and Purple columns parked until their receivers cycle forward — they sit below the belt line and are easy to forget.
4. Watch the funnel-fed Red drops; if Red has no open slot, let the batch ride the conveyor instead of forcing it into a column.

Midgame: unlock the gated stacks

By the middle of the solve the tray has thinned to about six columns, and the receivers are asking for mixed requests like Mint Green, Light Pink, Blue, and Orange. The remaining columns hold mystery tiles on the right side, and yellow lock-and-pipe pieces still gate the taller stacks.

5. Unlock a gated column only when the tiles it releases match open receivers — the key drops several tiles at once, so time it for the active front row.
6. Work the tall columns one tile at a time; the striped Pink-Green and Blue-Green tiles count toward whichever matching receiver is front and center.
7. Feed the conveyor in the order it arrives: Red, Blue, and Teal batches cycle through, and a full matching batch finishes a Box in a single pass.
8. When a mystery tile appears in the queue, treat it as an unknown — do not stack a combo on top of it, and play it only when its reveal matches the front Box.
9. Prioritize columns that expose two matching tiles in a row; clearing them empties a column and opens the tray for the endgame.

Cleanup: chase the last marbles

With the grid nearly empty, the level becomes a straight finishing line. The end frame shows the tray stripped down to a handful of marbles, with Blue, Purple, Dark Green, Orange, and Red riding the belt while Green and Pink wait on the bridge above it.

10. Every remaining marble is a single waiting for its Box to slide to the front — play only to the active front row.
11. Let the funnel and conveyor cycle: the last Reds drop automatically, so bank them when their receiver opens and do not chase colors whose receivers have closed.
12. Feed the marbles waiting on the bridge as their slots clear; the bridge pieces are the final blockers on the board.
13. Finish the last Boxes as the stragglers drop and let the tray empty. The level completes the moment the final marble lands.

Level 369 Tips Recap

• Reveal before you commit: the receiver row starts under ’?’ tiles, so never plan a combo on a color you cannot see.
• Unlock the yellow-locked columns only when the released tiles match open receivers — key drops clear several tiles at once.
• Only feed colors with an open Box; the funnel keeps adding Reds to the belt, so let unneeded batches ride instead of forcing them.
• In the endgame the tray is nearly empty; cycle the conveyor, clear the bridge, and feed the last singles into their Boxes.