Marble Sort Level 17 — Walkthrough and Solution

Level 17 is the giant mystery box wall and tunnel trap. A 3x4 slab of Mystery Boxes with White trapped behind twin Dark Reds — clear Dark Blue and Purple, then sacrifice those two Reds to free the White.

Level17
DifficultyEasy
Priority routeBlue → Pink
Watch forBlue

▶ Video walkthrough of Marble Sort level 17, then the step-by-step below.

⚡ Quick clear

Blue → Pink. The Blue wall blocks the row behind it.

Marble Sort Level 17 parks a giant grey blockade dead centre and dares you to chip at it. A huge core of Mystery Boxes sits flanked by two Tunnels, and the colours you need to start are buried under ones you have no use for. This one isn't about speed — it's careful excavation, because one wrong tap on the outer columns floods the belt with dead colours.

The upper-middle is a solid 3x4 slab of Mystery Boxes, with two Tunnels marked 3 holding the wall on either side. The real puzzle sits at the bottom corners: Pink and Dark Blue on the bottom-left, and twin Dark Reds side-by-side on the bottom-right, with a White and a Light Blue visible above them.

Marble Sort Level 17 Walkthrough

The front Boxes demand White, Purple, Dark Blue, and White. There's the trap: you need White to clear two of them, but the only White you can see is locked behind the twin Dark Reds on the bottom-right. The Boxes don't want Dark Red yet — one waits in the second row, out of reach until the front clears. So you'll have to make a sacrifice on the belt to dig that White free.

How to Beat Marble Sort Level 17 — Step-by-Step

Crack the outer columns

  1. Tap the Dark Blue on the bottom-left into the active Dark Blue Box. One slot cleared.
  2. Tap both twin Dark Reds on the bottom-right. No Dark Red Box is active yet, so park both on the belt — that's the sacrifice.
  3. With the Reds gone, tap the Dark Blue that was hiding behind them to finish the Dark Blue Box.
  4. Tap the White on the right column into one of the active White Boxes.
  5. Move left and tap the Purple above the empty space to clear the active Purple Box.
  6. Tap the Pink on the bottom-left onto the belt, next to the Dark Reds.

Expose the Mystery Boxes

  1. The front line clears and the second row slides up: Dark Blue, Dark Red, Yellow, Yellow.
  2. The Dark Reds you parked earlier flush into the new Dark Red Box, and the belt clears.
  3. Now chip at the Mystery wall one box at a time. Tap one on the wall's bottom edge and read the colour.
  4. If it matches an active Box like Dark Blue or Yellow, drop it. If it's a dead colour like Light Blue or Orange, leave it.

Manage the Tunnel spills

  1. As the Mystery Boxes clear, the left Tunnel bursts and spills a chain of Yellow marbles.
  2. Two Yellow Boxes are waiting, so route the Yellows straight down to clear the centre congestion.
  3. The final Boxes surface, wanting Light Blue, Orange, and Pink.
  4. Your parked Pink flushes into the final Pink Box.
  5. Mop up the remaining Light Blue and Orange from the top-right and the centre to finish.

Tips & tricks

  • Two White Boxes sit in the front, but the only White is locked behind the Dark Reds — plan the sacrifice around it.
  • Read every Mystery reveal before reacting; a dead colour dropped early is how this board kills you.
  • Parking the two Dark Reds early isn't waste; the second-row Dark Red Box repays them right away.

Common mistakes

  • Blind-tapping the Mystery wall. A Light Blue or Orange reveal with no Box will overfill the belt.
  • Rushing the two Dark Reds before any Dark Red Box exists — they clog the belt and stall the White dig.

Marble Sort Level 17 FAQ

Why does my Conveyor Belt flood on Marble Sort Level 17?

You tapped the Mystery Boxes blindly and revealed dead colours like Light Blue or Orange with no Box. Chip the wall one box at a time and only drop what matches an active Box.

Which color do I clear first on Marble Sort Level 17?

Dark Blue, on the bottom-left. It clears a front Box immediately and starts the chain that frees the White hidden behind the twin Dark Reds.

How many moves does it take to clear Marble Sort Level 17?

Roughly twelve taps across three phases — the Dark Blue and sacrifice play, the Mystery Box chip, then the Tunnel's Yellow spill and the Pink, Light Blue and Orange cleanup.

Do I need boosters to beat Marble Sort Level 17?

No. Sacrifice the two Dark Reds, let the Tunnel deliver the Yellows, and the board clears. Save boosters for boards with hidden Boxes or locks.

What happens if I tap the Mystery Boxes blindly?

You reveal colours like Light Blue or Orange that have no active Box, so they sit on the belt and overfill it before you can clear the front line.

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