Marble Sort Level 171 — Walkthrough and Solution

Marble Sort Level 171 is a locked-center puzzle where two massive Purple pillars block the middle columns until you retrieve both hidden keys. The winning order is to clear the front Orange pair, then the Pink and Purple, then the Green and Dark Blue, before digging for the keys on the far sides. Do not touch the left side early or the Conveyor Belt jams.

The Top Tray starts with four main columns: left holds Pink, Purple, Green, and a Light Blue key; right holds Orange, White, Green, and an Orange key. The bottom Boxes are connected in pairs, with the front row demanding Green, Orange, Orange, Dark Blue from left to right. Behind them, Pink is tied to Dark Blue, and Purple is tied to Orange. The middle two columns are dead space until the pillars drop.

Marble Sort Level 171 Walkthrough

The front row of bottom Boxes asks for Green, Orange, Orange, Dark Blue in that exact order. The left key is buried under Pink and Green on a Light Blue block, while the right key sits on Orange under Orange, White, and Green. The back rows of Boxes are connected diagonally, so you must clear pairs together.

The main trap is the left side: Pink and Purple sit in the Top Tray but have no immediate Boxes, so tapping them early will choke the Conveyor Belt. You must satisfy the front Orange Boxes first to shift the board and reveal the Pink and Purple Boxes.

How to Beat Marble Sort Level 171 — Step-by-Step

Phase one: Clear the front row

1. Tap the Orange block in the third column of the Top Tray.
2. Tap the Orange block in the fourth column.
3. Wait for the two center Orange Boxes to fill.
4. Now tap the Pink block in the first column.
5. Tap the Purple block in the second column.
6. Tap the Green block in the first column, which is now exposed.
7. Tap the Dark Blue block in the second column.

Phase two: Retrieve the keys

1. Wait for a White Box to appear in the bottom right area.
2. Tap the White block from the fourth column.
3. Wait for a Green Box to appear, then tap the Green block from the fourth column.
4. When an Orange Box appears, tap the Orange block holding the right key.
5. Watch the first Purple pillar vanish, revealing Yellow, Brown, and Dark Blue marbles.
6. Do not tap the center colors yet.
7. Clear any blocks above the Light Blue key on the left side.
8. When a Light Blue Box appears, tap the Light Blue key block.
9. The second Purple pillar disappears.

Phase three: Clear the connected pairs

1. Scan the bottom Boxes for black lines connecting colors.
2. If a Brown Box is tied to a Pink Box, find both colors in the Top Tray and drop them back-to-back.
3. Pull from the newly opened center only when the current front row requires those colors.
4. If a Box needs six marbles but only three are visible, leave it until the rest are exposed.
5. Keep dropping in pairs to match the diagonal ties until the board clears.

Tips & tricks

• Always clear the front Orange Boxes before touching Pink or Purple.
• Watch the Conveyor Belt capacity; don't release a color if its connected partner is buried.
• After the keys drop, work in pairs to satisfy the tied Boxes.
• Use the center columns as a buffer for late-game colors.

Common mistakes

• Tapping the left Pink or Purple too early, which chokes the belt.
• Ignoring the connected Boxes and dropping a single color without its partner.
• Spamming the center colors right after the first pillar falls, before the second key is found.

Marble Sort Level 171 FAQ

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