Car Sort: Color Puzzle Level 406 Solution Walkthrough

Understand the one-sided traffic pattern

The opening shelves show purple and pink near the top, dotted green beneath them, dark green and orange through the middle, blue in the lower middle, and bright green at the bottom. Above the route sit blue, pale pink, and pink-green columns. Below it are yellow, purple, and green garages behind covers.

Use this route:

opening blue top column → pink upper column → top-shelf purple → dotted green shelf → orange middle pocket → dark-green bands → blue lower band → bright-green bottom row → upper red release → lower yellow → lower purple → lower green → returning pink and orange → cream middle row → final red and green columns

Cars enter the U-shaped road from the right edge and travel around its long outer path. The right straight is therefore both entrance and bottleneck. Never release a second color while a marker from the first is still visible there.

Clear the top feeder before the inner shelves

Begin with the complete blue column above the left side. It has a clean entrance and removes one of the upper blockers. Pink follows from the next exposed top face. Wait for pink to leave the right-hand straight before touching the purple shelf inside the U.

Purple is the first safe horizontal band. Drain it across the top of the inner stack. The dotted green row below becomes accessible next. Clear that entire green group; its patterned appearance distinguishes it from the dark-green rows deeper in the board.

An orange pocket becomes visible between the green layers. Complete orange before moving into the dark-green bands. Orange is short, but a final marker can remain near the top bend. Check the road rather than assuming the batch has finished because the shelf is dark.

At the first checkpoint, the blue and pink upper feeders should be reduced, purple and dotted green should have opened broad horizontal gaps, and orange should be the only warm color that has moved. The yellow, purple, and green garages below should remain closed.

Work down the stacked green and blue bands

Two dark-green rows occupy the middle. Clear the upper complete row first, let the road reset, and then drain the lower one. They are visually similar but belong to separate shelf layers. Alternating them can leave a single group circling while its remaining source is hidden.

Blue spans the next lower band. This later blue row is independent of the opening top column. Clear it through the open right straight. Bright green sits at the bottom of the inner stack and follows after blue. Removing bright green creates the lower buffer used by all three outside garages.

The useful middle checkpoint has dark lanes through most of the inner stack, with perhaps one dotted-green, cream, or orange row still present. The top columns show red, pale pink, or green, and the lower covers have begun to reveal solid yellow, purple, and green faces. Complete any remaining inner band before committing to those lower columns.

Release the upper red and lower yellow in sequence

Red becomes a tall upper column after the opening blue face is gone. Drain red completely. Its cars need the entire right straight and the lower turn, so do not start yellow from below until the red marker has disappeared.

Yellow is the first safe lower garage. Clear it from the bottom-left position, using the dark bright-green shelf as a buffer. Purple follows from the middle bottom garage, and green follows from the right. Each column should be emptied separately.

The order is particularly important because the bottom garages enter close together. Starting green while purple remains on the route creates a queue at the lowest bend, and neither column can finish. A correct state after the lower trio has large dark gaps beneath the U and one exposed pink or orange face above.

Return to the upper pink and orange layers

Pink appears again in a tall top column. Treat it as a fresh batch. Clear the full pink face and then move orange when its neighboring upper or middle garage is complete. A later dotted-green column may appear beside them; reserve it until orange has parked.

Inside the stack, cream replaces one of the dark covered rows. Cream is a long horizontal group and should leave before the final upper columns. It needs the open right edge more than the short outside faces do. Drain cream continuously, wait for the last pale marker to cross the top of the route, and confirm that the shelf has become entirely dark.

Purple may return in an upper shelf while yellow and green have already cleared below. Complete the purple row first if it touches the right exit. The outside purple garage is a different layer and should already be empty. Matching color does not make the sources interchangeable.

Finish the vertical feeders against an empty U

Late in the level, the inner stack is reduced to a few solid bands while the upper feeders form red, pink, and green columns. Clear the complete column closest to the open right edge, allow a full reset, and then take the next one. Red normally precedes green because it is exposed earlier and occupies the upper merge.

If blue remains inside, finish it before the final green column. If cream remains, clear cream before red. The purpose is to empty the long horizontal shelves before sending the last tall outside group onto the route.

The final checkpoint shows every inner shelf as a dark bar, the left return completely empty, and one vertical garage still carrying color. Release that group without alternating. Its cars should travel smoothly down the right side, around the bottom, and back toward their matching bay. The completion screen appears only after the final marker has parked.

Recovery on the U-shaped road

If a car stops on the right straight, find the horizontal shelf aligned with its color. Complete that shelf before touching any upper or lower column. Every group shares this entrance, so adding traffic cannot open the lane.

A blockage near the top belongs to blue, pink, red, orange, green, or another upper feeder. Finish the active top column and leave the inner rows alone until it clears. A blockage at the lowest turn belongs to yellow, purple, green, bright green, or the lower section of a long shelf batch.

When a bottom cover remains closed, inspect the bright-green row and the blue band above it. Those inner groups create the dark space that unlocks the lower garages. When an upper column fails to open, finish the patterned-green, orange, or purple shelf associated with that phase.

If two colors become mixed, stop tapping. Complete the source whose cars are nearest the right entrance, wait until those markers park, and then finish the second group. A restart is only needed when both sources are locked and stationary cars occupy the top and bottom turns simultaneously.

Level 406 rewards a strict top-to-bottom sweep. Blue and pink open the upper feeders, purple and patterned green clear the first shelves, orange and the dark-green bands expose blue and bright green, and those lower rows release yellow, purple, and green beneath the road. The returning pink, orange, cream, red, and green groups then use an almost empty U. Keep the right straight reserved for one batch, and even the tallest final columns will have a safe route to their garages.