Marble Sort Level 108 — Walkthrough and Solution

Marble Sort Level 108 is a puzzle that punishes impatience. The board is a 5x5 tray above a row of four empty boxes. The left and right edges are crowded with arrow tiles that all aim toward the center. Those arrows cannot fall directly; they must slide horizontally into an open column first. If the center is blocked, those side tiles stay frozen.

At the start, the tray's bottom row has, from left to right: a Light Pink tile that points right, a solid Light Blue tile, a solid Red tile in the exact middle, a solid Green tile, and a Light Pink tile that points left. The two Light Pink corner tiles are trapped because they point toward the Light Blue and Green neighbors. Above that bottom row, the center column is stacked (from bottom to top) with Red, Yellow, Purple, Green, and Light Blue. The top-left and top-right corners each hold a Tunnel with a "3" label, which will release clusters later.

Marble Sort Level 108 Walkthrough

Your starting bottom boxes demand, in order from left to right: Red, Orange, Light Pink, Orange. So you have two Orange boxes to fill, but almost all Orange marbles on the tray are locked behind arrows or high up. The safe opening is to clear the center column first, even if it means parking some colors on the conveyor belt temporarily.

The main trap is that the bottom-left and bottom-right Light Pink tiles are pinned by the solid Light Blue and Green blocks next to them. You cannot move those Light Pink tiles until you remove the blocks that block their slide path. That forces you to drop the Light Blue and Green into the belt early, which feels risky but is necessary to open the board.

How to Beat Marble Sort Level 108 — Step-by-Step

Phase one: Excavate the center

1. Tap the dead-center Red tile in the tray's bottom row. It falls into the far-left Red box, clearing it.
2. Now remove the solid Light Blue tile that sits to the left of the center gap. It drops to the conveyor belt.
3. Remove the solid Green tile that sits to the right of the center gap. It also goes to the belt.
4. With those two blocks gone, the bottom-left Light Pink arrow tile can slide right. Tap it, and it falls into the center gap, then drops to the mid-right Light Pink box, clearing it.
5. Similarly, tap the bottom-right Light Pink arrow tile. It slides left and drops, also contributing to the same Light Pink box.

Phase two: Release the side arrows

1. Now the center column is empty at the bottom. The next tile above is Yellow. Tap that Yellow tile to drop it to the conveyor belt, banking it for later.
2. This creates a deeper gap. Look for an Orange arrow tile on the left side, lower quadrant. Tap it so it slides into the center gap and drops into one of the Orange boxes.
3. Find other Orange tiles on the right side (some solid, some arrow). Tap them in any order to fill the remaining Orange boxes.
4. Once both Orange boxes are cleared, new bottom boxes slide in, typically asking for Light Blue, Dark Pink, and Green. The Light Blue and Green marbles you parked on the belt earlier will now automatically fill those new boxes, emptying your belt.

Phase three: Handle the corner tunnels

1. As you clear upper rows, the tunnels in the top corners become active. Do not trigger a tunnel unless your conveyor belt has at least four free slots.
2. When you clear the block directly under the top-left tunnel, it activates and releases three marbles (often Yellow, Dark Blue, Pink). Let them land on the belt.
3. Check your current bottom boxes. Only trigger the top-right tunnel if you need those colors to fill a box. Otherwise, leave it dormant until later.
4. Remaining arrow tiles in the top row point downward; tap them so they drop straight into the center columns and fall into matching boxes.
5. Continue clearing tile by tile, always watching belt capacity. Let the final tunnel drops happen only when you have room and a matching box to receive them.

Tips & tricks

• Always keep the center column as your primary drop zone; never block it with a tile that you aren't ready to clear.
• Use the conveyor belt as a temporary holding area for colors you don't have boxes for yet, but never fill it beyond half full.
• When you see a tunnel, plan ahead: clear the tile beneath it only when you have space and a need for its colors.

Common mistakes

• Tapping side arrow tiles too early, before the center gap is open, will cause them to jam and waste moves.
• Triggering a tunnel while the belt is crowded, which floods the belt with unplayable marbles and ends the run.
• Ignoring the bottom boxes' order; always fill the leftmost box first to avoid blocking new boxes from appearing.

Marble Sort Level 108 FAQ

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