Marble Sort Level 345 Walkthrough Solution

Marble Sort Level 345 Guide: The Surprise Bag and Double Lock Trap

This board is a masterclass in baiting you into a quick loss. The dominant colors here are Purple, Orange, Pink, and Lime Green, but the real issue is the massive cluster of grey Surprise Bags sitting right in the middle of the Top Tray.

Right off the bat, you will see six scattered keys resting on various colored blocks. You will also see two distinct Lock and Key obstacles blocking your progress in the lower setup. The whole level hinges on matching those keys without accidentally flooding your space with unknown marbles from the bags. If you just start tapping things that look matchable, you will hard-lock your game.

The Locked Columns Pattern in Marble Sort Level 345

You need to look closely at how this specific board is stacked before making a single move. The Top Tray has a jagged shape, heavy on the right side and featuring a flat row across the bottom.

That bottom exposed row is your only safe starting point. It holds Purple, Yellow, Lime Green, Pink, Purple, and Orange blocks. Just above this safe zone, the board gets extremely dangerous. You have two rows containing pairs of grey Surprise Bags. Mixed in and around these bags are marbles holding silver keys. You have keys sitting on Green, Orange, Pink, Lime Green, and Blue blocks scattered from the top left all the way down to the bottom right.

Now look down at your four bottom Boxes. This is where the run-killer hides.

Column 1 (Far Left): Starts with Purple, then Lime Green, and then hits a hard Lock on a Purple box.
Column 2: Starts with Orange, then Pink, Orange, and Purple.
Column 3: Starts with Pink, then Lime Green, and hits another hard Lock on a Lime Green box.
Column 4 (Far Right): Starts with Orange, then Lime Green, Lime Green, and Pink.

The jam risk on this board is extreme. If you tap the Surprise Bags too early, they will dump random colors—like Brown, Blue, or Green—straight onto your Conveyor Belt. Since your bottom Boxes are currently demanding Purple, Orange, and Pink, those random colors will just sit there. Once the belt fills up, you are totally paralyzed. The left and third columns are entirely dependent on you finding the right keys to break their locks. Until those locks open, you have almost nowhere to dump your marbles.

Marble Sort Level 345 Step-by-Step Walkthrough

You must play this board with strict discipline. Do not touch anything with a question mark on it until the board forces you to.

Surviving the Opening Moves in Marble Sort Level 345

Your first taps dictate whether you win or lose. The goal right now is to clear the safe bottom row of the Top Tray and get the front Boxes out of the way.

Drop the bottom-left Purple and bottom-right Orange marbles from the Top Tray. Send them straight into the active Purple Box in column 1 and the Orange Box in column 4.
Grab the bottom Pink marble and drop it into the Pink Box in column 3.
Carefully pull down the remaining Purple, Yellow, and Lime Green marbles from that front line. You need to clear space to reach the blocks holding the keys.
Completely ignore the grey Surprise Bags. They are absolute bait. If you release them now, your Conveyor Belt will fill with unplayable colors and you will fail before clearing the first lock.
Focus on the Pink block holding a key on the lower left side, and the Blue block holding a key on the lower right side. You must get these down to the belt to start progressing.

Breaking the Locks in Marble Sort Level 345

Once you clear that initial front wall, the board state shifts. Your top priority is opening the locked lower columns.

Look at your bottom Boxes. Column 1 needs to clear a Lime Green box to expose its Purple lock. Column 3 needs to clear a Lime Green box to expose its Lime Green lock.
Target the Lime Green blocks in the Top Tray. There is one holding a key on the right side. Drop it to clear the active Lime Green bottom Boxes.
Watch your Conveyor Belt capacity. If you have mismatched colors sitting there, prioritize dropping marbles that match the top active Box in column 2 (which should now be Pink or Orange depending on your previous clears). Use column 2 as your garbage disposal to keep the belt moving.
Collect the keys. Once a key reaches the bottom, it flies to the matching Lock. You absolutely must unlock the Purple box in column 1 and the Lime Green box in column 3 to open up fresh dumping grounds.

Clearing the Late Game Jam in Marble Sort Level 345

Once both locks are shattered, the level finally gives you some breathing room, but the trap is not fully disarmed.

Now you can finally tap the Surprise Bags. Only tap one pair at a time. Let them spill onto the Conveyor Belt and immediately match them into your newly unlocked bottom Boxes.
If a bag drops Brown or Blue marbles, look for the corresponding Box deep in the bottom columns. Do not panic and spam the top tray. Wait for the bag's contents to sort before dropping anything else.
Sweep the remaining top keys (the Green top-left and Orange top-right). Send them down to clear the final layers. Keep an eye on column 4, which holds stacked Lime Green and Pink boxes, and use it to absorb any stragglers from the bags. Pace your final releases and the board will clear.

Marble Sort Level 345 Walkthrough Solution | Marble Sort 345