Marble Sort Level 673 — Walkthrough and Solution

Level 673 is the iced cross and hidden box trap. The Iced Cross and Hidden Box Trap can jam your belt if you pull the wrong color early, so the key is clearing the bottom stem first.

Level673
DifficultyHard
Priority routeRed → Pink
Watch forRed

▶ Video walkthrough of Marble Sort level 673, then the step-by-step below.

⚡ Quick clear

Red → Pink. Hidden boxes turn every tap into a guess.

Marble Sort Level 673 presents a board shaped like a diamond in the top tray. The center holds five Iced Boxes filled with Pink, arranged as a cross. Around this frozen core sits a ring of gray Hidden Boxes. The outer edges show Dark Red, Cyan, and Orange marbles. Your starting bottom Boxes ask for Blue, Green, and Orange. The Conveyor Belt has limited space. Pulling a color you cannot immediately match will fill your belt and end the run. The strategy is to ignore the top half and dismantle the bottom edge first.

The board layout dictates your play order. In the top tray, the dead center is locked by five Pink Iced Boxes. Surrounding them are Hidden Boxes. Exposed tips show Dark Red in the top right corner, Cyan at the top peak, Orange on the far left wing, and at the bottom stem you see Orange, Blue, and dark Green. Your starting bottom Boxes have four columns: a Blue Box on the far left, two Green Boxes in the middle, and an Orange Box on the right. Deep in these stacks, a Mystery Box sits under the visible colors.

Marble Sort Level 673 Walkthrough

The left-to-right demands of your bottom Boxes are Blue, Green, Green, Orange. The Dark Red and Cyan are decoys—do not touch them until matching boxes appear.

The trap is that Dark Red looks easy to grab, but there is no Dark Red space initially. Pulling it wastes belt slots. The entire opening relies on clearing the bottom stem to expose the lower Hidden Boxes.

How to Beat Marble Sort Level 673 — Step-by-Step

Phase one: Clear the bottom stem

  1. Tap the Blue marbles at the bottom center of the top tray and send them into the left Blue Box.
  2. Drop the dark Green block directly under where the Blue was into the two middle Green Boxes.
  3. Route the Orange marbles on the far left wing into the right Orange Box.
  4. As bottom Boxes clear, the board cycles, exposing the lower ring of gray Hidden Boxes. Tap cautiously to reveal colors.

Phase two: Crack the ice cross

  1. After the bottom stem clears, new colors rise: Yellow, Magenta, and Dark Red. Check for a Dark Red Box, then safely pull the Dark Red marbles from the top right.
  2. Clear gray Hidden Boxes next to the central cross to crack the ice on neighboring Iced Boxes.
  3. Do not pull Pink immediately; wait for a Magenta/Pink Box to surface.
  4. Peel the left side of the hidden ring to reveal Yellow, and feed them into the Yellow Box on your left.
  5. Watch belt pressure. If a revealed color has no matching box, leave it and work on another side.

Phase three: Late game cleanup

  1. Keep pushing columns down to uncover the Mystery Box at the bottom.
  2. Maintain at least two empty belt slots. When the Mystery Box reveals its color, shuffle top marbles to match it.
  3. Clear the top Cyan cluster only after a Cyan box appears.
  4. Mop up remaining Pink marbles from the cross to finish.

Tips & tricks

  • Always clear the bottom stem before touching the top Dark Red or Cyan.
  • Keep two Conveyor Belt slots open at all times for unexpected reveals.
  • When a Hidden Box reveals an unusable color, shift your focus to another side of the cross.

Common mistakes

  • Pulling Dark Red or Cyan early jams the belt.
  • Clearing Pink before a matching Box appears wastes space.
  • Ignoring the Conveyor Belt limit leads to failure.

Marble Sort Level 673 FAQ

Why does my Conveyor Belt flood on Marble Sort Level 673?

Pulling colors you cannot immediately match, like Dark Red or Cyan before their boxes appear, floods the belt.

Which color do I clear first on Marble Sort Level 673?

Clear the Blue at the bottom stem first, then the dark Green and Orange.

How many moves does it take to clear Marble Sort Level 673?

There is no set move count, but a careful playthrough typically takes about 50 to 60 moves.

Do I need boosters to beat Marble Sort Level 673?

No, boosters are not necessary if you follow the bottom-up strategy and manage your belt.

What happens if I pull Dark Red too early on Marble Sort Level 673?

It will sit on your belt with no matching box, clogging space and likely costing you the run.

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