Marble Sort Level 374 Walkthrough & Solution

Level 374 Board Overview: The Mystery-Target Grid

Level 374 opens on a six-column tile grid, and the whole top row of targets is hidden. The receiver grid at the top of the board shows grey ’?’ mystery tiles instead of colors, so you cannot see what the board wants until tiles start landing. Below the grid, a funnel feeds tiles in from the bottom, and the conveyor queue is already loaded: a single Dark Blue marble sits at the front, followed by a special light pink marble with a star, then three Red marbles and a cluster of Light Blue.

The opening grid is a mix of solid and special tiles. You can see Yellow, Red, light Pink, and Green in the columns, along with white-based tiles dotted with multiple colors and rainbow-striped tiles that act as multicolor targets. Six ’?’ mystery tiles sit in the top-left section of the grid, and the storage columns under the conveyor hold Red, Light Blue, Pink, Yellow, Green, and Purple waiting their turn.

The board is the tile/block-grid variant: tiles ride the conveyor up through the funnel and land in the grid, where each target slot accepts one matching color. Because the targets start blank, the opening is about feeding the few colors you can identify and letting the reveals shape the rest.

The Trap in Marble Sort Level 374

The mystery targets are the whole difficulty. Here is what to watch:

• Every top target starts as a ’?’ tile: the receiver row is all grey question marks at the start, so the first few drops are made blind. You feed what the conveyor offers and hope it matches what a target reveals.
• The starred marble is a special drop: a light pink marble with a star rides the queue behind the opening Dark Blue. It is a wildcard-style tile — treat it as a bonus rather than planning a combo around it.
• Striped multicolor tiles accept several colors: the rainbow-striped targets can take more than one color, which sounds helpful but also means a color you banked might be claimed by a different stripe first.
• The queue arrives in misleading batches: Red and Light Blue cluster early, but the mid-game belt swaps to Orange and Red. Feeding a full batch before its target is revealed jams the grid.

Marble Sort Level 374 Step-by-Step Walkthrough

Play the reveals, then the batches. Follow the phases in order.

Opening: feed what you can see

1. Drop the front Dark Blue marble straight away — it starts the reveal cycle and opens the first ’?’ target.
2. Keep the starred light pink marble in reserve until a target opens that matches it; it clears more than a single tile when it lands.
3. Tap the three Red marbles only when a Red target has actually appeared — the striped tiles may claim the color first.
4. Work the Light Blue cluster next; Light Blue appears across the grid and in the storage columns, so it feeds steadily.
5. Let every landed tile flip a ’?’ target. Re-check the top grid after each drop and match the new colors immediately.

Midgame: clear the grid as targets open

By the midpoint the board is mostly empty — the mid-solve frame shows the columns thinned out with a handful of slots still holding tiles. The top grid has revealed solid targets in Red, Blue, Purple, Pink, Green, White, Yellow, and Light Blue, with a few ’?’ tiles left and a single striped multicolor target (Orange, Green, Blue) still in play. The conveyor has two Orange marbles at the front, followed by two Red.

6. Feed Orange as it arrives — the striped Orange/Green/Blue target accepts it, and the storage tubes are holding more Orange.
7. Clear the Red batch right behind it; Red appears in both the queue and the tube columns.
8. Prioritize columns that reveal two matching targets in a row — clearing them empties a column and opens the top grid faster.
9. When a ’?’ target finally flips to a color you have in the tubes, feed it before the queue cycles past.
10. Keep the funnel clear: never park a tile at the funnel mouth waiting for a target that has not appeared.

Cleanup: finish the final receivers

The end frame narrows everything to four target slots: two Red receivers and two Green receivers. Only four tiles remain on the board — one Red, one Red, one Green, one Green — and the queue is carrying a long mixed belt of Pink, Light Blue, Dark Blue, White, Orange, Green, Yellow, and Red behind them.

11. Drop the two single Red tiles into the Red receivers as the queue cycles them forward.
12. Drop the two single Green tiles into the Green receivers the same way; both colors have exactly two targets left, so match them one for one.
13. Ignore the rest of the belt — Pink, Light Blue, Dark Blue, White, Orange, and Yellow all still ride the conveyor, but no target remains for them.
14. Let the last two receivers fill and the board clears; the level completes when the final tile lands.

Level 374 Tips Recap

• The top grid opens fully under ’?’ targets — re-check it after every drop and play the colors it reveals.
• Keep the starred marble for a target that matches it; it is a special drop, not a queue-filler.
• Striped multicolor targets accept several colors, so feed them before they lock onto a color you still need.
• In the endgame only Red and Green receivers remain — ignore the long mixed belt behind them.