Marble Sort Level 645 — Walkthrough and Solution

Marble Sort Level 645 presents a board where a large Green Cross divides the Top Tray into four separate zones. This layout restricts your access to the upper corners until you remove the lower rows. The solution demands that you prioritize the Brown and Purple marbles, which are the only colors that can be safely dropped at the start, while ignoring the Orange, Yellow, and Light Blue marbles that are positioned near the funnel.

The board's main challenge is the initial arrangement of Boxes: the bottom row of the Top Tray contains large tiles that act as gatekeepers. From left to right, these are Light Blue, Purple, Purple, Orange, Yellow, Purple, and Brown. Below, the bottom Boxes are arranged in four columns: Column 1 is entirely Purple, while Columns 2, 3, and 4 are topped with Brown Boxes. The trap is that the Orange and Yellow tiles in the center of the Top Tray look like easy targets, but releasing them early will clog your Conveyor Belt because there are no matching Boxes ready to receive them.

Marble Sort Level 645 Walkthrough

To start, focus on the front-row Boxes: the leftmost column demands Purple, and the next three columns demand Brown on top. Your immediate goal is to clear those Brown Boxes using the Brown tile on the far right of the Top Tray, and then use the Purple tiles to fill the Purple Boxes.

The key insight is that the Orange, Yellow, and Light Blue tiles in the center are decoys. They will only become useful much later when their corresponding Boxes appear after you've cleared the initial layers. So, ignore them completely until the right moment.

How to Beat Marble Sort Level 645 — Step-by-Step

Phase one: Clearing the Brown and Purple Front Line

1. Tap the Brown tile on the far right of the Top Tray to release Brown marbles. These will fill the top Brown Boxes on columns 2, 3, and 4.
2. After the Brown Boxes are gone, tap the three Purple tiles located at the bottom left and bottom right of the Top Tray. This will flood the Purple Boxes in column 1 and any newly exposed Purple Boxes in the middle columns.
3. Do not touch the Light Blue, Orange, or Yellow tiles yet. Leave them untouched until their specific Boxes are available.

Phase two: Handling the Connected Boxes

1. Now, the board will reveal Connected Boxes, which are linked by black lines. For example, you'll see an Orange Box linked to a Pink Box, and a Purple Box linked to a Dark Blue Box.
2. These Connected Boxes cannot be cleared independently. You must manage your Conveyor Belt to handle both colors in the chain.
3. Start by tapping the dual-color linked tiles that are adjacent to the Green Cross. For instance, grab the Brown/Pink tile only when a Pink Box is ready to accept the second half.
4. When an Orange Connected Box appears, you can now release the Orange tile you left in the center earlier. This will clear the Orange requirement and unlock the Pink Box it is tied to.
5. Keep a close eye on your Conveyor Belt capacity. If you pull a dual-color tile and the second color has no active Box, it will sit on the belt. Avoid letting more than three mismatched marbles accumulate, or you'll jam.

Phase three: Clearing the Top Quadrants

1. Once the Connected Boxes are resolved, the pressure eases, and the bottom area will start producing standard Yellow, Green, and Red Boxes.
2. Now you can safely tap the Yellow and Light Blue tiles from the bottom row of the Top Tray to clear the remaining front-line Boxes.
3. Reach into the top-left and top-right quadrants to find solid blocks of Red, Green, and Dark Blue. Match these to the final columns of bottom Boxes.
4. Because you kept your Conveyor Belt clean during the Connected Box phase, you'll have ample room to buffer the final colors and finish the board.

Tips & tricks

• Always check the bottom Boxes before tapping any tile to ensure you have a matching destination.
• When dealing with dual-color tiles, plan two steps ahead to ensure the second color has a place to go.
• If your Conveyor Belt starts to fill, pause and clear any easy matches before continuing.

Common mistakes

• Falling for the center Orange and Yellow tiles too early, causing a jam.
• Neglecting to clear Brown and Purple first, which blocks progress.
• Overloading the Conveyor Belt without checking for available Boxes.

Marble Sort Level 645 FAQ

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