Car Sort Level 68 Solution Walkthrough
Route Reference
Key opening, middle, and finish positions for this route.

Open The Roof Of The Square
Level 68 has two towers above a square road, two rows of covered columns inside it, and two large garages below. The upper-left tower begins with pink and pale cars, while cyan fills the right. Blue, white, orange, purple, pink, and green are layered inside.
Use this order:
pink upper-left -> cyan upper-right -> white upper blocker -> blue inner columns -> orange right column -> purple middle-left -> pink lower-left -> white lower-right -> green bottom garages
Clear pink and cyan before opening the inner covers. These towers control the roof and the only right-hand turn.
Work through blue in the upper interior, then orange on the right. Purple and pink open the lower half of the square. White follows once the bottom road is clear. Finish the two green garages last so they do not block the exit used by the inner columns.
If the square crowds, complete the inner color already closest to its garage. If green was opened early, stop and clear the lower white/pink traffic before returning to it. The main Level 68 checkpoint is an empty roof after the two top towers; from there, each inner column can leave without meeting traffic from below.
Using Empty Columns As Buffers
Finish the pink roof tower before cyan crosses from the right. Once both are parked, open only the upper interior covers. White clears the approach, blue creates the first empty vertical slot, and orange uses that slot to turn out of the right column.
Purple and pink begin the lower half. Complete purple first so pink does not meet it at the bottom edge. White follows through the cleared corner. The two green garages remain closed throughout this interior work.
If an inner column stalls, finish the color already on the perimeter and keep the newly emptied column free. If green was opened too soon, do not add another covered car; close pink and white below it until the road clears. A hollow square, not merely visible matching colors, is the signal for the final garages.
The inner rows should also be cleared from the roof-facing cells toward the floor. Blue opens the first vertical gap, orange uses the right side, and purple turns through the lower-left only after those upper groups settle. Pink and white then remove the final interior traffic.
Before either green garage moves, trace all four sides of the square. No center car should remain on the top or bottom edge. Green enters a route with no alternate parking, so one unfinished white or pink car is enough to stop the final batch. Finish that interior color and restore the hollow-square checkpoint first.
Open the two green garages sequentially rather than together. The first group clears one bottom entrance; the second group then receives the full lower side and right corner for the final approach.