Marble Sort Level 17 Walkthrough Solution | Marble Sort 17

Marble Sort Level 17 Guide: The Giant Mystery Box Wall and Tunnel Trap

You load up this board and immediately see the problem. Marble Sort Level 17 drops a massive, gray blockade right in the center of your screen. This level is a masterclass in bait-and-switch tactics. You are staring down a huge core of Mystery Boxes flanked by two Tunnels, and the colors you actually need to start sorting are buried underneath colors you have no immediate use for.

Winning this board is not about speed. It is about careful excavation. One wrong tap on the outer columns will flood your Conveyor Belt with dead colors, locking you out of the match entirely. You have to peel the edges off this board before you even think about touching the middle.

The Central Blockade in Marble Sort Level 17

Look directly at the Top Tray. The layout here is brutal. The entire upper-middle section is a solid 3x4 grid of pure Mystery Boxes. You have absolutely no idea what is behind that gray wall.

Supporting this wall on the left and right are two Tunnels, both marked with a "3". These will spit out multiple marbles once activated, but they are currently locked tight.

The real puzzle in Marble Sort 17 sits at the bottom corners of the Top Tray. On the far bottom-left, you have a Pink box. Right next to it is a Dark Blue box. Over on the bottom-right side, you have twin Dark Red boxes sitting side-by-side. Above those Dark Reds, you can clearly see a White box and a Light Blue box.

Now, look down at your active bottom Boxes. The front row demands White, Purple, Dark Blue, and White.

Do you see the trap? You need White marbles to clear two of your starting bottom Boxes. But the only visible White box in the Top Tray is trapped behind those twin Dark Red boxes on the bottom right. The bottom Boxes do not want Dark Red yet. The second row of bottom Boxes has a Dark Red waiting, but you cannot reach it until the front line clears. You are going to have to make a sacrifice play on your Conveyor Belt to dig out that White box.

Marble Sort Level 17 Step-by-Step Walkthrough

You need to execute the opening perfectly. The Conveyor Belt has just enough room to hold the junk colors while you snipe the ones you need. Stick to this exact order.

Cracking the Outer Columns in Marble Sort Level 17

Your only goal right now is satisfying that front line of bottom Boxes: White, Purple, Dark Blue, and White.

1. Tap the Dark Blue box sitting on the bottom-left of the Top Tray. Send it straight down to the active Dark Blue bottom Box. That clears one slot.
2. Look at the twin Dark Red boxes on the bottom right. You have no Dark Red bottom Box active yet. Tap both of them anyway. Send them to the Conveyor Belt. This is your sacrifice play. They will sit there and take up space, but you have to move them.
3. With the Dark Reds gone, the right column opens up. Tap the Dark Blue box that was hiding behind them to finish clearing the Dark Blue bottom Box.
4. Now tap the White box on the right column. Drop it into one of your active White bottom Boxes.
5. Move over to the left side. Tap the Purple box sitting above the empty space to clear your active Purple bottom Box.
6. Tap the Pink box on the bottom left and send it to the Conveyor Belt to sit next to your Dark Reds.

Exposing the Mystery Boxes in Marble Sort Level 17

The front line of bottom Boxes is finally gone. This is where the board violently shifts. The second row of bottom Boxes slides up, revealing Dark Blue, Dark Red, Yellow, and Yellow.

1. Watch your Conveyor Belt. Those Dark Red boxes you parked there earlier will now automatically flush into the new Dark Red bottom Box. Boom. Your belt is clear again.
2. Now you must slowly start chipping away at the giant wall of Mystery Boxes in the center.
3. Tap one Mystery Box on the bottom edge of the gray wall. Stop and look at the color.
4. If the revealed color matches an active bottom Box (like Dark Blue or Yellow), tap it down to clear space.
5. If the Mystery Box reveals a dead color like Light Blue or Orange, leave it alone. Do not blindly tap the center wall, or you will instantly overfill your Conveyor Belt.

Managing the Tunnel Spills in Marble Sort Level 17

As you clear the Mystery Boxes, the board starts to shrink, and the Tunnels will finally activate.

1. The Tunnel on the left will eventually burst, spilling a massive chain of Yellow marbles onto the board.
2. Do not panic. You have two active Yellow bottom Boxes waiting for them. Route the Yellows straight down to clear out the heavy center congestion.
3. Once the Yellows are cleared, the final bottom Boxes will reveal themselves, demanding Light Blue, Orange, and Pink.
4. Your Conveyor Belt should still be holding that early Pink box. It will automatically flush into the final Pink bottom Box.
5. Mop up the remaining exposed Light Blue and Orange boxes from the top right and the center ruins to finish the board. Keep your taps slow and deliberate at the end, and you will secure the win.