Marble Sort Level 123 — Walkthrough and Solution

Level 123 is the wooden crate and nine-marble trap. The wooden crates hide the real challenge: managing leftover marbles on the Conveyor Belt is the key to beating this puzzle.

Level123
DifficultyEasy
Priority routeYellow → Green
Watch forYellow

▶ Video walkthrough of Marble Sort level 123, then the step-by-step below.

⚡ Quick clear

Yellow → Green. Only drop a colour when its box is ready.

Marble Sort Level 123 presents a board dominated by Yellow, White, Light Green, Dark Green, plus a few other colors. The immediate threat is the pair of large wooden crates in the Top Tray that restrict your moves to a narrow center column, forcing a precise order of taps. The trap is the 9-marble blocks: every drop leaves a remainder that can jam the belt unless you plan ahead.

At the start, the Top Tray holds five bottom-row blocks: Yellow on the far left, Light Blue next, then White, Dark Green, and Yellow on the far right. Between the crates, a vertical stack rises with White at the base, then Light Green, Orange, and Blue at the top. The bottom Boxes have four columns with specific color demands from top to bottom. The far left column needs White, then Light Green, then Yellow. The second column needs White, then Yellow. The third column needs Light Green, then Yellow, then White. The far right column needs Dark Green, then White, then Light Green. Each bottom Box holds only three marbles, while each top block releases nine, so leftovers are inevitable.

Marble Sort Level 123 Walkthrough

Your initial goal is to clear the front-row Boxes and set up a perfect Yellow combo. The far left column's top Box is White, the second column's top Box is White, the third column's top Box is Light Green, and the far right's top Box is Dark Green. The center column's White block is your first target.

The critical imbalance is that the Light Blue block in the Top Tray has no matching Box initially; tapping it early is fatal. Also, the 9-marble White block will leave exactly three White marbles stranded after filling the two White Boxes, but those will be useful later.

How to Beat Marble Sort Level 123 — Step-by-Step

Phase one: Breaking the Front Line

  1. Tap the center White block. This drop fills the White Boxes on the far left and second columns, leaving three White marbles on the belt. They are safe for now.
  2. Tap the Light Green block that appears behind the White in the center column. This fills the Light Green Box on the third column and the one exposed under the far left column's White Box. Now you have three White and three Light Green marbles waiting on the belt.
  3. Tap either Yellow block on the far left or far right. This releases nine Yellow marbles that perfectly fill the three exposed Yellow Boxes (one in each of the first three columns) with zero waste.
  4. Tap the Dark Green block on the right side. This fills the Dark Green Box on the far right column but leaves six Dark Green marbles on the belt, tightening your space.

Phase two: Managing the Midgame Wave

  1. Do not panic as new colors like Pink, Purple, Blue, and Light Blue appear in the bottom Boxes. The crates shift, and the board opens up.
  2. Clear the remaining center column blocks (Orange and Blue) only when a matching Box is visible. For example, wait for a Blue Box before tapping the Blue block.
  3. For Purple and Pink blocks, always check that at least two Boxes of that color are ready. Dropping a 9-marble block for a single Box will choke the belt.
  4. When a White Box appears buried under the third or fourth column, let your leftover White marbles from Phase one slide into it. This frees belt space.

Phase three: Late Board Cleanup

  1. Prioritize clearing blocks that reveal the left side columns. The lower left Boxes often hide necessary colors behind Light Green and Pink layers.
  2. Finally, tap the Light Blue block from the start, but only when two Light Blue Boxes are visible. This prevents a massive leftover.
  3. In the final moves, watch the Conveyor Belt carefully. Never drop a color unless the corresponding Box is immediately ready to receive it, as the game hides one last off-color Box to ruin your pacing.

Tips & tricks

  • Always count your marbles: a 9-marble block needs at least two Boxes to avoid a huge remainder.
  • Use the belt as a temporary storage; just don't let it fill completely.
  • Clear the Light Blue block only in the late game when it's safe.

Common mistakes

  • Tapping the Light Blue block early, which floods the belt with unusable marbles.
  • Dropping a block when only one Box is ready, causing a jam.
  • Ignoring the leftover White marbles, which can block critical space later.

Marble Sort Level 123 FAQ

Why does my Conveyor Belt flood on Marble Sort Level 123?

The belt floods because each top block releases nine marbles, but the bottom Boxes only hold three, so you always have extra marbles that must sit on the belt until a matching Box appears.

Which color do I clear first on Marble Sort Level 123?

Clear the center White block first, as it fills two White Boxes and leaves a manageable remainder.

How many moves does it take to clear Marble Sort Level 123?

It takes roughly 15-20 moves depending on your choices, but the exact number varies because you must wait for the right Boxes to appear.

Do I need boosters to beat Marble Sort Level 123?

No boosters are required if you follow the correct order and manage your leftovers; boosters can help but are not necessary.

What happens if I tap the Light Blue block early on Marble Sort Level 123?

Tapping the Light Blue block early releases nine Light Blue marbles with no matching Box, flooding your belt and almost certainly causing a game over.

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