Marble Sort Level 737 — Walkthrough and Solution

Marble Sort Level 737 presents a board sealed by a ring of striped Tunnels and four rocket-shaped Arrow Boxes that guard the outer marbles. Your only opening is the central cluster, and the bottom Boxes dictate a strict feeding sequence: White, Blue, Orange, then Light Green. Ignore the tempting Red square in the middle—it is a decoy that will clog your belt if dropped early. The key is to clear the center in the exact order your front row demands, then pivot to the newly revealed rows and finally manage the Tunnel surge.

The center holds a Red square between Green and Blue blocks, with grey Mystery Boxes in the corners. Below your starting bottom Boxes (White, Blue, Orange, Light Green) sits a second row of Brown, Red, White, and Pink, and a third row with Red and more Pink. The Tunnels, once unlocked, will pour Blue, Cyan, and Pink marbles onto the belt, so you must keep space open by matching colors quickly.

Marble Sort Level 737 Walkthrough

Your bottom row from left to right demands White, Blue, Orange, and Light Green. The second row behind them is Brown, Red, White, Pink. The third row adds Red and Pink again. Every tap must feed these boxes in order, or the belt will jam.

The central Red square is the trap. It looks like an easy match, but no front Box accepts Red, so dropping it early will occupy a slot forever. Wait until the second row's Red and Pink boxes slide forward, then you can safely clear them.

How to Beat Marble Sort Level 737 — Step-by-Step

Phase one: Dismantle the core

1. Tap the White block in the center to feed the far-left bottom Box.
2. Guide the Blue block next to it into the second Box.
3. Drop the Orange block into the third Box.
4. Leave the Red square untouched; it is bait.
5. After the front row clears, the second row (Brown, Red, White, Pink) advances. Now tap the Mystery Boxes only when you have three open belt slots, because they may reveal colors you cannot immediately match.
6. Slide the Brown block into the now-available far-left slot, then the Red block into the second slot, and so on, matching the new row demands.

Phase two: Survive the Tunnel release

1. Once the center is hollow, the Arrow Boxes activate and open the outer Tunnels.
2. Immediately, Blue, Cyan, and Pink marbles flood the belt. Prioritize clearing the Cyan and Orange bottom Boxes that appear in the lower tray.
3. Work the left side: tap Green and Purple blocks to feed the left Boxes, reserving right-side Yellow and Red for later.
4. Keep the belt from choking by constantly matching colors as they arrive, especially the Cyan and Blue marbles.

Phase three: The Surprise Bag endgame

1. When the Tunnels are nearly empty, a grey Surprise Bag becomes accessible in the upper center.
2. Do not open it yet. Clear the bottom Yellow and Pink Boxes first to ensure you have empty belt space.
3. Once the belt is clear, crack open the Surprise Bag.
4. Match its hidden marbles with the remaining Green and Orange bottom Boxes to finish the level.

Tips & tricks

• Always feed the bottom Boxes in order; skipping ahead will cause a jam later.
• When Mystery Boxes reveal unwanted colors, let them sit on the belt and pivot to matching the new Red and Pink boxes that appear.
• During the Tunnel flood, focus on clearing the most common colors (Blue, Cyan) first to free belt space.
• Keep the Surprise Bag for last, but only after clearing Yellow and Pink to make room.

Common mistakes

• Dropping the central Red square early, which permanently occupies a belt slot.
• Opening Mystery Boxes without enough belt space, causing a jam.
• Ignoring the bottom Box order and matching randomly, which floods the belt later.
• Popping the Surprise Bag while the belt is crowded.

Marble Sort Level 737 FAQ

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