Car Sort Level 90 Solution Walkthrough
Route Reference
Key opening, middle, and finish positions for this route.

Upper And Lower Bays Around A Small Square
Level 90 has red-marked bays above and below a square road, with three covered columns inside. Red, yellow, cyan, orange, white, green, blue, pink, and purple share its corners.
Use this sequence:
red upper bays -> yellow top-left -> cyan top-right -> dark center-left -> blue center -> orange center-right -> white bottom-left -> green bottom-middle -> cyan bottom -> pink bottom-right -> purple cleanup
Clear the upper bays and top towers before the center columns. Keep the lower bays closed until the square is hollow.
If orange blocks the right corner, finish blue first. If pink stalls, cyan or green remains on the bottom road. Level 90 becomes safe once the inner square is empty and all remaining traffic comes only from below.
Emptying The Square Before The Lower Bays
Use the red roof bays first; their cars have the shortest path and free both upper corners. Yellow on the left and cyan on the right can then clear as separate batches. Do not alternate between them, because their routes meet along the top edge.
The three covered center columns are the working phase of the level. Open the dark left column, finish blue through the middle, and then send orange out of the right column. Blue must be gone before orange reaches the corner. Once these columns are empty, the road should look like a hollow square rather than a storage ring.
White and green begin the lower transition, followed by the remaining cyan. Pink uses the lower-right turn after those colors park; purple is the final small cleanup batch. The red bays below should stay closed until this sequence has removed every car from the inner square.
For recovery, locate the occupied corner. A blocked upper corner means one of the roof or center colors is incomplete. A blocked lower corner means the current white, green, or cyan batch needs to finish. Never open the opposite lower bay merely to create movement—it adds a second stream and traps pink. Return to a hollow-square checkpoint before continuing.
Four Corners, Two Distinct Phases
In the upper phase, the top-left corner belongs first to red and yellow, while the top-right belongs to red and cyan. The center columns then borrow both corners in the dark, blue, orange sequence. Do not judge the center as finished until all four sides of the small square are visible with no car waiting at a turn.
The lower phase reverses your attention. White and green clear the bottom-left approach; cyan prepares the bottom edge; pink needs the bottom-right corner. Purple should only see an almost empty board. If a lower color reaches the wrong corner and stops, finish the batch already occupying that side rather than releasing another garage. Returning to the hollow-square state between batches is the simplest way to preserve the intended Level 90 solution.