How do you pass challenge 72?

Challenge level 72 is REALLY hard. I’ve breezed through every other level with no problem at all, but this one took me about 15 attempts, and the only solution I found used every single move available, so if you accidentally touch the wrong car at any time you are stuffed.

Clear absolutely everything you can without moving any other cars. After that, the key is to clear the bottom left corner, but to do that you need to get rid of the mess of cars in the middle. There are two cars you need to move on the right side, to open up the exit a bit, they are (in the basic colour skin) the long red one and the shorter blue-green one to the left of the red car; they both need to move DOWN. Then move everything that’s now unblocked (not very many cars unfortunately) including the car over near the left hand wall. Next, move the blue-green car (the one you moved before) but this time move it UP, freeing a lot more cars, which all need to be moved in order, including ones which exit out of other parts of the car park. There’s now a yellow car near the left hand side which is blocking the last two problem cars in the bottom left hand corner. You need to move it to the RIGHT. Now every car should be able to exit the car park if you move them in the correct order, remembering that a single mistake will lead to a failure on the level.

OMG thank you!!!!! I was stuck on this lvl for the last 2 days with only one car left and no moves! I was wracking my brain