Marble Sort Level 19 is built to end you in the first five seconds if you chase the obvious. Pink, Purple, and a menacing Black block crowd the centre, while the Boxes on the left are screaming for Dark Blue that's locked away. The outer edges are sealed by numbered Tunnels, so there's no brute-forcing it — you play the exact sequence or the belt jams.
The tray splits into five columns, with the two ends capped by blue Tunnels showing 3. Those Tunnels are the real gatekeepers: they only open when you clear bottom Boxes, and every clear chips their counter. The centre holds a Black cluster at the front with Purple right behind it — both fully exposed and completely useless right now.
Marble Sort Level 19 Walkthrough
The front Boxes run Dark Blue, Dark Blue, Orange, Pink. There's no Black or Purple Box open anywhere, so those two centre clusters just eat belt space if you tap them. Your Dark Blue is trapped in two spots: one in column two, pinned under Light Blue, and another inside the far-right Tunnel. That locks the left Boxes until the right side is solved, which is why Orange and Pink are your only starts.
How to Beat Marble Sort Level 19 — Step-by-Step
Dodge the centre trap
- Leave the front Black and the Purple behind it alone.
- Tap the Orange at the bottom of column one. It clears the third Box and drops both Tunnels from 3 to 2.
- Tap the Pink at the bottom of column five to clear the fourth Box.
- Tap the other Pink at the bottom of column two into the new Pink Box that appeared in the third slot.
- The right Tunnel hits zero, lifts its arch, and reveals the Dark Blue you needed.
Exploit the open Tunnels
- Drop the freed Dark Blue from the right column, then the Dark Blue from column two. Together they slam into the front-left Boxes.
- As those clear, the left Tunnel winds to zero and lifts, exposing Pink and Light Blue behind it.
- Now the Boxes reveal Brown and Purple. Drop the centre Purple and Brown only when their Boxes sit in the front row.
- Keep ignoring the Black until the very end — its Box is buried deep, so leave it as an obstacle rather than choking the belt.
The final push
- With both Tunnels open and the Dark Blue gone, match the newly revealed Light Blue and Purple Boxes with the tall stacks in columns two and three.
- Clear the outer-column stragglers first, then hold the Black until its Box appears.
- Close out the board.
Tips & tricks
- The centre Black and Purple are decoys — they sit free, but no Box will take them for a long time.
- Each clear on the right chips a Tunnel counter; Orange and Pink are your countdown tools.
- Treat the Black as a parked obstacle, not a target, and the belt stays clean.
Common mistakes
- Panic-tapping the centre. Black and Purple have no Box, so they flood the belt's left side.
- Releasing the Black too early — it's buried so deep it'll strand on the belt for half the run.
Marble Sort Level 19 FAQ
Why does my Conveyor Belt flood on Marble Sort Level 19?
You tapped the centre Black or Purple cluster before any matching Box was open. Neither has a Box in the front row, so they flood the belt. Clear Orange and Pink on the sides first.
Which color do I clear first on Marble Sort Level 19?
Orange on the bottom of column one, then the Pinks. Those side clears count the Tunnels down and eventually free the Dark Blue locked on the right.
How many moves does it take to clear Marble Sort Level 19?
Around eleven taps across three phases — the Orange and Pink side clears, the Dark Blue release, then the Light Blue and Purple finish with the Black held till last.
Do I need boosters to beat Marble Sort Level 19?
No. Solve the right side to unlock both Tunnels and the board opens itself. Save boosters for boards with hidden Boxes or locks.
What happens if I tap the centre Black early?
It drops onto the Conveyor Belt with no Black Box to catch it, so it sits there and strangles your space while you still need to clear the left side.
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