Marble Sort Level 739 — Walkthrough and Solution

This board is a standard Marble Sort puzzle with a twist: the Mystery Boxes conceal crucial empty slots, and the front row tempts you with colors whose matching slots are buried deep. The key is to prioritize the exposed Brown, Green, Yellow, Orange, White, and Light Blue clusters based on what the bottom slots actually need, while leaving the dangerous ones alone until later.

At the start, the bottom tray holds four columns: Column 1 (left) has Light Blue on top, then Dark Blue, Green, and Dark Blue at the bottom. Column 2 (mid-left) stacks Dark Blue, Light Blue, Red, and Dark Blue. Column 3 (mid-right) contains White, Brown, Orange, and Yellow. Column 4 (right) has Brown, Orange, White, and Yellow from top to bottom. The top tray presents a row of clusters: Brown on the far left, then Green, Yellow, Orange, White, and Light Blue on the far right. Behind these, a solid stack of Blue blocks sits on the far left, and the middle and right sections are filled with grey Mystery Boxes. Two blue Tunnels with timers 3 and 4 are at the top, and a gear block marked '2' locks the right side.

Marble Sort Level 739 Walkthrough

The front row clusters that look safe are actually traps because their matching bottom slots are buried two or three rows deep. The only safe first moves are to clear the Light Blue, White, and Brown clusters, as their slots are immediately accessible. The Green, Yellow, and Orange clusters must be left untouched until their slots are exposed.

The specific imbalance is that the empty bottom Boxes are trapped behind Mystery Boxes, and you must free them to have enough space for the marbles you clear. The gear block '2' further restricts the right column, so you need to unlock it by clearing marbles around it.

How to Beat Marble Sort Level 739 — Step-by-Step

Phase one: Clear the safe front row and free the first slots

1. Tap the Light Blue cluster on the far right of the top tray to clear the front Light Blue slot in Column 1.
2. Tap the White cluster to clear the front White slot in Column 3.
3. Tap the Brown cluster on the far left to clear the front Brown slot in Column 4.
4. Do not touch the Green, Yellow, or Orange clusters yet.
5. Tap the top Blue block from the left stack to clear the active Dark Blue slot in Column 2.

Phase two: Break the Mystery Boxes and unlock the board

1. Tap the next Blue block to clear the newly exposed Dark Blue slot in Column 1.
2. Tap one grey Mystery Box from the bottom-most row in the middle. If it reveals Brown or Orange, route those marbles into the active slots immediately. If it reveals a color you don't need, leave them on the belt – you have space for now.
3. Clear the solid Orange block on the left to feed the active Orange slot.
4. Tap the exposed Light Blue cluster (revealed from behind the White marbles) to clear the Light Blue slot in Column 2.

Phase three: Survive the tunnels and finish

1. Make matches near the gear block marked '2' to break its lock and free the right side.
2. Continue clearing Mystery Boxes one at a time to reach the two blue Tunnels.
3. Before breaking the final blocks under the Tunnels, ensure you have at least four empty slots on the Conveyor Belt, as the Tunnels will release a large chain of marbles.
4. Use those marbles to fill the newly dropped bottom slots.
5. Clear the Yellow and Red clusters last, as their slots are at the very back and only become active in the final sequence. Drop them to finish the level.

Tips & tricks

• Always check which bottom slots are active before tapping any top cluster; the game updates the active slots as you clear marbles.
• When a Mystery Box reveals a color you don't need, don't panic – you can often use it later to clear a different slot.
• Keep the Conveyor Belt as empty as possible, especially before the Tunnels activate, to avoid a jam.

Common mistakes

• Tapping the Green, Yellow, or Orange clusters early, which jams the belt because their slots are not yet available.
• Breaking the Tunnels without having enough empty slots, causing a flood.
• Ignoring the gear block '2', which locks the right side and prevents you from using those slots.

Marble Sort Level 739 FAQ

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