Marble Sort Level 215 Walkthrough & Solution

Level 215 Board Overview: Tubes Meet the Crate Grid

Level 215 is a hybrid board. Instead of a single tray of bottles, it splits the puzzle in two: an upper block grid and a set of marble tubes at the bottom. A conveyor belt feeds the tubes from below, cycling balls up as the tubes empty, so the real game is managing two boards at once.

The upper grid opens ringed by wooden crates — four diagonal-slat crates sit at the top-left, top-middle, middle-left, and middle-right, hiding whatever sits behind them. Blue corner markers printed with “4” (five of them) and “3” (one of them) sit around the crates, and a cluster of red balls sits in the center. On the lower part of the grid, eight gray mystery ’?’ tiles stack in two columns — four on the left, four on the right — blocking the blocks beneath them.

The bottom tubes start partially filled. Reading across, the visible colors are green, purple, and light blue in the left tube; bright green, purple, cyan, orange, yellow, green, and cyan in the middle-left; cyan, orange, yellow, light blue, grey, purple, and cyan in the middle-right; and green, purple, grey, green, and grey in the right tube. The conveyor below is already pushing cyan, green, and purple balls up into the tubes when the level starts.

The Trap in Marble Sort Level 215

The board is rigged to make you chase the wrong side of the screen. Here is the layout:

• Wooden crates wall off the grid: four diagonal-slat crates block the top-left, top-middle, middle-left, and middle-right grid positions. You cannot see or reach what is behind them until the visible blocks clear.
• Mystery ’?’ tiles hide the lower grid: eight gray ’?’ tiles stack in two columns at the bottom of the grid. Every tap on them is a gamble — the block underneath could be exactly what a numbered marker wants, or dead weight.
• Numbered corner markers are the real targets: the blue markers labeled “4” and “3” ride the grid corners, and the midgame frames show more numbered slots counting down (4, 3, 2, 0). Clearing them empties whole areas of the grid.
• The conveyor can jam your tubes: the belt feeds mixed colors up into the bottom tubes. Only three or four tubes are open, so a wrong color arriving at the wrong moment blocks the whole feed line.

Marble Sort Level 215 Step-by-Step Walkthrough

Play the grid first, then let the tubes follow. Follow the release order.

Opening: work around the crates

1. Start with the bottom tubes — tap the colors that already match what the conveyor is feeding: cyan, green, and purple are the colors moving on the belt, so group those first.
2. Clear the visible grid blocks at the edges of the upper grid before touching anything under a crate. Every block you remove opens a sightline.
3. Leave the gray ’?’ mystery tiles alone for now. They sit at the bottom of the grid, and nothing about the opening layout tells you what they hide.
4. Do not stack a color in a tube unless that color is actively arriving on the conveyor. With only four tubes open, every wasted slot jams the feed.
5. Peel the visible edge blocks one at a time. Keep matching colors together so the numbered markers can be fed in order once they open.

Midgame: feed the numbered markers

By the middle of the solve the grid has thinned out. The mid-solve frame shows the top grid down to six tube/column slots, partially filled, with numbered markers reading “2”, “3”, “0”, “4”, “4”, and “0” — two of the slots are already counting down to empty. The grid now holds blue, purple, yellow, white, green, and orange blocks, with white clustered in the center and middle-right, and the mystery ’?’ columns still sitting at the bottom waiting to be revealed.

6. Feed the numbered markers as their counts open. A marker at “2” or “3” needs that many matching blocks — bank the visible blocks of that color into it.
7. Clear the white blocks in the center and middle-right — they are the largest visible cluster and opening them frees the middle of the grid.
8. Drop yellow, green, and orange into their markers as they become reachable. Match block color to marker color and never stack mixed colors in a single slot.
9. The bottom ball queue is now showing red, pink, yellow, and white coming up the track. Only play a queued ball when its color has a slot that is open — the white blocks on the grid line up with the white in the queue, so prioritize that run.
10. Leave the mystery ’?’ columns until the visible grid around them is gone. When you finally reveal them, play the block underneath only if its color matches a numbered marker; otherwise move on.
11. Keep the conveyor cycling. The tubes at the bottom are the pressure valve — as long as they stay open, the queue keeps feeding the grid.

Cleanup: close out the last slots

With the grid nearly empty, the level becomes a finishing line. The last two slots count down to “0”, and the remaining blocks drop into place one at a time.

12. Play strictly to the active slots now — a block whose marker already hit “0” is done; do not feed it.
13. Let the bottom queue cycle the last colors. Red, pink, and any stragglers feed only when their slot is open.
14. Finish the final numbered markers and the last tube stacks together. The level ends the moment the grid clears — the end frame shows the Level Completed reward pop-up with the progress bar at 70% and a 25-coin reward waiting behind the Continue button.

Level 215 Tips Recap

• The crates and the ’?’ tiles are the same trap: do not reveal what you cannot use yet. Clear the visible grid edges first.
• The conveyor is the tempo setter — only tap balls whose color has an open tube or a numbered marker, or the queue jams.
• Chasing the numbered markers (4, 3, 2, 0) in order clears the grid fastest; matching color to marker is the whole midgame.
• In the endgame, stop feeding finished slots and just let the last queue colors cycle home.