Marble Sort Level 343 — Walkthrough and Solution

Marble Sort Level 343 is a tough logic puzzle that mixes a cross-shaped Top Tray with hidden Mystery Boxes, Connected Boxes, and Tunnels. The key to winning is to prioritize colors that match your currently open bottom Boxes, and to avoid dropping anything that doesn't fit, or the Conveyor Belt will jam.

The Top Tray has a bottom lip with six exposed marbles: Red on the far left, Black next to it, Green in the middle, then Red, Orange, and Red on the right. Above that row, four grey Mystery Boxes hide unknown colors. In the center, an Orange and a Blue are Connected Boxes, so they drop together. On the left wing, you'll see Purple and Red Connected Boxes, a blue Tunnel marked with a 3, and one visible Light Blue marble. The right wing has Blue and Light Pink Connected Boxes, a lone Purple marble, and another blue Tunnel with a 3. At the top center, two yellow mechanisms act as a Lock and Key, blocking Light Pink and Dark Red marbles until you unlock them below.

Marble Sort Level 343 Walkthrough

Your starting bottom Boxes demand: Light Blue on the far left, Light Blue next to it, Light Blue in the middle, and Green on the right. Only one Light Blue is visible, so you must rely on Mystery Boxes and Tunnels to find the rest.

The biggest trap is the abundance of Red, Black, and Orange marbles on the front row, but no bottom Boxes for them yet. Tapping them early will clog the belt and end the run.

How to Beat Marble Sort Level 343 — Step-by-Step

Phase one: Secure Green and Light Blue

1. Tap the single Green marble in the middle of the bottom row; it drops into the Green bottom Box, freeing that slot.
2. Tap the visible Light Blue marble on the left wing; it fills one Light Blue slot.
3. Now, tap the four grey Mystery Boxes one by one, looking for Light Blue. When you find one, immediately drop it to fill the next Light Blue slot. Continue until all three Light Blue Boxes are satisfied.

Phase two: Clear the front row and wings

1. Once Light Blue is done, new bottom Boxes will appear, likely for Red, Orange, and other colors. Now you can safely drop the Red, Black, and Orange marbles from the bottom lip, starting with the leftmost Red.
2. Tap the Orange and Blue Connected Boxes in the center, but only when you have an Orange or Blue bottom Box open, because they drop together.
3. On the left wing, tap the Purple and Red Connected Boxes, but again, wait for a matching bottom Box.
4. On the right wing, tap the Blue and Light Pink Connected Boxes when you have Blue or Light Pink available.

Phase three: Unlock the top and finish

1. Clear the bottom Boxes that trigger the Lock and Key mechanism; the yellow barriers will disappear.
2. Now you can access the Light Pink and Dark Red marbles at the top center. Drop them into the appropriate bottom Boxes as they become available.
3. Finally, pull marbles out of the two Tunnels one at a time, matching each color before pulling the next, to finish the level.

Tips & tricks

• Always clear the Green marble first because it's the only one that matches an open slot, and it frees up a slot for a new color.
• When pulling from Tunnels, do it one marble at a time, and only when the belt is empty, to avoid jams.
• Use the Mystery Boxes early to find Light Blue, but don't tap them all at once; reveal them one by one and only drop what you need.

Common mistakes

• Tapping Red, Black, or Orange before their bottom Boxes appear, which clogs the belt.
• Pulling multiple marbles from a Tunnel without matching them, leading to a pileup.
• Ignoring the Connected Boxes and dropping them when you don't have a matching slot, wasting belt space.

Marble Sort Level 343 FAQ

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