Marble Sort Level 212 Walkthrough Solution | Marble Sort 212

Marble Sort Level 212 Guide: The Double Lock and Key Trap

Marble Sort Level 212 hits you immediately with a nasty bottleneck. You look at the board and realize half of it is completely inaccessible. The center of the board is held hostage by a double Lock and Key setup, and everything behind it is a massive wall of grey Mystery Boxes.

You are dealing with a heavily restricted front row. Light green, pink, and orange dominate your immediate needs, but the game deliberately places dead colors right in your way. To make matters worse, two Gift Boxes marked with a '4' sit on the far left and right edges. You cannot touch them until the center starts moving. This board requires absolute precision early on. One wrong tap in the front row will clog your Conveyor Belt with useless marbles, leaving you mathematically dead before you even reach the first key.

The massive Mystery Box blockade in Marble Sort Level 212

Let's break down exactly what you are staring at in Marble Sort Level 212. The Top Tray is shaped like an inverted funnel, but the very top is completely covered by eight Mystery Boxes. You have no idea what colors they hold, meaning you cannot plan your late game yet.

Right below that grey block sits the main trap. You have two horizontal Lock and Key obstacles. The top key points right. The bottom key points left. They are locked onto purple, blue, and orange boxes. Flanking this entire center structure are two blue and red Gift Boxes. Because they sit on the outer edges, they will not trigger until you aggressively clear the middle path.

Now look at your front lines. The very bottom row of the Top Tray gives you a light green box, a light blue box, another light green box, and a white box.

Check your bottom receiving Boxes. This is where the game tries to bait you.

• Column 1 is begging for light green.
• Column 2 needs orange.
• Column 3 wants pink.
• Column 4 also wants pink.

Notice the massive disconnect? Your front row in the Top Tray is serving up light blue and white, but your bottom Boxes want none of that yet. The light blue box sitting dead center in the front row is pure bait. Tapping it will dump unmatchable marbles straight onto your Conveyor Belt, eating up your limited survival space. You have to work around it. The lower Boxes strictly dictate your opening moves here, forcing you to snipe the correct colors from the second row to survive.

Marble Sort Level 212 Step-by-Step Walkthrough

You need to surgically dismantle the front rows to expose the keys. Do not rush. Keep your eyes on the bottom Boxes because they shift fast, and the required colors will change the second a front box clears.

Bypassing the front row bait in Marble Sort Level 212

Your first taps are critical. If you mess up the opening sequence, hit restart.

1. Look at the far-left bottom Box. It wants light green. Tap the two light green boxes in the front row of the Top Tray. They will drop and clear that first slot immediately.
2. Leave the light blue box sitting in the front row alone. Do not touch it. You do not have an active bottom Box for it yet.
3. Look at the second row of the Top Tray. You have two pink boxes. Tap them now. They will drop down and clear the active pink receiving Boxes sitting in columns 3 and 4 at the bottom.
4. Clearing those pinks will pull up a white receiving Box on the bottom right. Now you can safely tap the white box sitting on the far right of the front row.
5. With the front row mostly out of the way, your bottom Boxes will shift to reveal new needs, primarily orange and more light green. Feed the orange box from the third row down into the second column.

Popping the Locks and Gift Boxes in Marble Sort Level 212

Once the front defenders are gone, the board completely changes its identity. You are now face-to-face with the keys.

1. Clear the box directly holding the bottom Lock and Key. This immediately snaps the lock, dropping the boxes above it down a level.
2. Clearing the sides next to the Gift Boxes will cause them to trigger. They burst open, dumping 4 new boxes onto the board. Expect to see purple, yellow, and red colors suddenly flood the area.
3. Your Conveyor Belt pressure is going to spike here. The bottom receiving Boxes will now shift to demand purple, green, and orange. Prioritize clearing the purple boxes to unlock the second key.
4. Once the top key is cracked, the entire back half of the board slides down.

Surviving the Mystery Box reveal in Marble Sort Level 212

The final phase of Marble Sort Level 212 is pure chaos management. The giant block of Mystery Boxes in the back will finally start revealing their colors.

1. Do not panic-tap as the Mystery Boxes flip over. You will reveal a cluster of red, white, yellow, and green.
2. Check your bottom Boxes again. The lower columns will be asking for red and yellow now.
3. Clear the newly revealed red boxes first, as they tend to block the vital white and green boxes hiding at the very back of the Top Tray.
4. Keep cycling your bottom Boxes evenly. If you focus entirely on one column, you will strand a color on the Conveyor Belt. Clear front-to-back, strictly matching the newly revealed colors until the board is empty.