Marble Sort Level 665 Walkthrough Solution | Marble Sort 665

Marble Sort Level 665 Guide: The Numbered Tunnel Trap

You load up the board and it looks like a colorful, easy clear. Do not be fooled. This board is a cage. Marble Sort Level 665 is completely controlled by two mechanics working together to ruin your day: a massive wall of directional blocks and a pair of locked dispensers holding your best moves hostage.

You will see heavy amounts of Purple, Orange, Green, Light Blue, and Brown. The colors are not the issue. The issue is the sequence. Make one wrong release at the start, and your Conveyor Belt will jam before you even scratch the midgame. We need to crack the center open immediately.

The unique Arrow Box blockade pattern in Marble Sort Level 665

Look at the Top Tray. It is an absolute mess of locked routes. The front row gives you access to an Orange cluster on the far left, followed by Green, Light Blue, a gap in the middle, two Purples, and a Brown on the far right.

Behind that front row is a nightmare of Arrow Boxes. On the left side, you have Yellow down arrows and a Brown right arrow. On the right side, there are Blue and Light Blue down arrows. You literally cannot touch the back rows until the exact clusters in front of them are cleared.

Right in the upper middle sit two Tunnels. They are dark grey pipes marked with a "2". This is the core obstacle of Marble Sort 665. Those Tunnels are holding back critical colors. They will not dispense their marbles until you clear exactly two bottom Boxes.

Now look at those lower Boxes. They are stacked four columns deep. The front active line is one Orange and three Purples. This dictates your entire opening strategy.

Here is the biggest trap on the board. The Green and Light Blue clusters in the front row of the Top Tray look totally free. They are bait. If you release them right now, they will drop onto the Conveyor Belt and just sit there. Their matching bottom Boxes are buried under the Orange and Purples. You will waste critical belt space and instantly fail the level.

Marble Sort Level 665 Step-by-Step Walkthrough

You have to play this board from the outside in, then straight up the middle. Do not touch anything on the left side until the right side does its job.

Beating the front line in Marble Sort Level 665

Your first taps must be deliberate. We need to get the Tunnel counters from a 2 down to a 0 immediately to force the board open.

1. Tap the two Purple clusters on the right side of the Top Tray front row.
2. These will drop down and perfectly clear two of the Purple bottom Boxes waiting in the front line.
3. Watch the center of the board. Because you just cleared two Boxes, the two Tunnels will drop their counters to 0.
4. The Tunnels will immediately dispense a Green cluster and a Yellow cluster into the center gap.
5. Now tap the Orange cluster on the far left of the front row. This clears the front-left Orange bottom Box.

You have successfully bypassed the early bait. The Green and Light Blue front clusters are still sitting there, but now you have room to breathe and newly revealed bottom Boxes to work with.

Managing the Tunnels and Arrows in Marble Sort Level 665

Once that first wave clears, the entire rhythm of the level flips. The bottom stack shifts, revealing new target Boxes like Yellow, Brown, and Pink. Your Conveyor Belt pressure is about to spike because the Arrow Boxes are finally waking up.

1. Use the newly dispensed Yellow and Green clusters from the Tunnels to match the newly revealed Yellow and Green bottom Boxes.
2. Clear the front Light Blue cluster. Do this only when a Light Blue bottom Box is actually visible.
3. Clearing that Light Blue cluster removes the physical block in front of the Arrow Boxes behind it. The down-pointing arrows will activate and unlock the next layer.
4. Focus on the center-left. You need to clear the blocks under the Yellow Arrow Boxes so they drop down and become playable.
5. Keep an eye on the Brown clusters on the right. Match them as soon as the Brown bottom Box pushes to the front of the lower stack.

The middle of this level is incredibly dangerous. You have access to too many colors at once. If you start tapping Pink or Blue before their bottom Boxes are at the very front of the line, your Conveyor Belt will clog. Always check the lower stack before tapping an unlocked Arrow Box.

Clearing the final corner blockades in Marble Sort Level 665

The ending of this board tests your patience. You will be left with the outer edges. The top left corner hides a Green down Arrow Box and a Red down Arrow Box.

1. Clear the Brown right-pointing Arrow Box on the left flank. This finally allows the left column to drop.
2. Match the Red clusters as they unlock. There are very few Red bottom Boxes, so do not strand Red marbles on your belt early.
3. Finish off the remaining Green and Purple clusters dropping from the top corners.

Never rush the final clear. Wait for the dropping animation of the Arrow Boxes to finish so you know exactly which color is active. Keep your belt clean, match the required pairs, and you will easily crush this board.