Rush Hour: I pushed the red car for an hour
The red car stood two cells from the exit. Two steps to victory. I stared at it for ten minutes and could not move it an inch.
The jam that would not clear
I picked cars by clicking and shoved them back and forth with the arrows. The truck across the exit leaned on another, that one on a third. I moved each car as if it were the main one. The red car sat and waited. After half an hour the board looked the same as at the start, only I was angrier.
The move that opened everything
Then I noticed a vertical truck deep in the field. It blocked nobody directly, so I had ignored it. Out of boredom I slid it all the way down, and the whole chain collapsed: the crosswise one freed up, then the next, and the passage opened by itself. The red car drove out right in three moves. I sat there counting the minutes I had spent on the cars nearest the exit.
My order now
First I look at the back cars holding the whole chain. I clear the depth of the field, then take apart the middle. I touch the red car last. Demo mode later showed the same thing: the solution came from the far edge, not from the exit.