Marble Sort Level 137 — Walkthrough and Solution

The board on Marble Sort Level 137 is shaped like a U, with four columns on each side and a deep gap in the middle. At the bottom of the gap are two blue Tunnels, each marked with a 4, meaning they contain four marbles. The columns are packed with colors: Pink, Yellow, Orange, Brown, Light Blue, White, and Purple. The top of the board has numbered pink boxes in some columns. The bottom area has four stacks, each with a box that shows what color marble you need to feed it. The leftmost stack asks for Pink, the next for Brown, the next for Yellow, and the rightmost for Purple. However, the Purple marbles are buried deep under the Tunnels, so you cannot fill that box early. Instead, focus on the left and center stacks.

The layout is symmetrical but tricky. Each column has a specific order of marbles. The far-left column has a Pink marble on top, then Brown, Light Blue, and a numbered Pink box at the very top. The inner-left column has Yellow, Blue, Orange, White, and another numbered Pink cap. The inner-right column has Yellow, Light Blue, and Orange. The far-right column has Light Blue, Brown, Light Green, Pink, and a numbered cap. In the center, under the Tunnels, there are Orange and Brown marbles, and below those are textured Purple and Blue blocks. The bottom boxes are the key to unlocking the board.

Marble Sort Level 137 Walkthrough

Start by looking at the bottom boxes. From left to right, they demand Pink, Brown, Yellow, and Purple. But Purple is not accessible yet. The trap is that the Purple marbles are locked under the Tunnels, so you must ignore the rightmost box. Instead, focus on the first three boxes. The Brown and Yellow are easy to reach because they appear in the upper columns. The Pink is also available in the far-left column. So your first moves should be to clear Brown and Yellow marbles from the top, then bring down a Pink marble.

The imbalance is that the right side of the board is blocked by the Purple box, but the left side has many marbles that match the active boxes. By clearing the left and center columns, you will trigger the Arrow Boxes and eventually open the Tunnels. The key is to keep the Conveyor Belt from filling up with colors you cannot use yet.

How to Beat Marble Sort Level 137 — Step-by-Step

Phase one: Clear the left and center

1. Tap the Yellow marbles in the inner-left and inner-right columns to fill the Yellow box in stack three.
2. Then tap the Brown marbles from the far-left and far-right columns to fill the Brown box in stack two.
3. After that, tap the Pink marble from the far-left column to fill the Pink box in stack one.
4. Keep clearing the top layer of the left and center columns. Avoid touching the Orange and Brown marbles under the Tunnels.

Phase two: Expose the Tunnels

1. As you clear the columns, the Arrow Boxes at the bottom of the columns will activate, shifting the board.
2. Check the newly revealed bottom boxes. The Mystery Boxes will flip to Light Blue and White.
3. Now tap the Orange and Brown marbles that were under the Tunnels to fill the matching lower boxes.
4. This will expose the Purple marbles at the bottom center. Tap them to fill the Purple box on the far right.
5. With the space under the Tunnels clear, the Tunnels will activate. They will spit out four marbles each. Only pull from them when you have an active box that matches the color.

Phase three: Final clearing

1. Continue to clear the remaining columns, dropping the numbered Pink boxes at the top.
2. The last Mystery Boxes in stacks one and four will flip. Route the marbles from the Tunnels to these boxes.
3. If the Conveyor Belt gets crowded, focus on completing one box at a time to free up space.
4. Clear the Green and Blue marbles hidden behind the Arrow Boxes to finish.

Tips & tricks

• Always clear the bottom boxes in order of left to right, but skip the Purple until it is available.
• Use the Conveyor Belt to hold marbles temporarily, but avoid filling it with colors you have no box for.
• When the Tunnels open, wait for the right moment to pull from them so you do not jam the belt.

Common mistakes

• Do not tap the center Orange and Brown marbles early; they will block the belt.
• Do not ignore the rightmost Purple box; it is essential but must wait until the Tunnels are exposed.
• Avoid pulling from the Tunnels unless you have a matching box ready.

Marble Sort Level 137 FAQ

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