CarrionCrow: Ah, I know what you mean. The obnoxious standard method, always a pain.
The language barrier made it that much more enjoyable, I'm sure.
In my case, it was a roommate and myself wrestling it off of a truckbed, barely squeezing it between the railing, getting it lined up with the door since it was too large for the twist method you used, then finding that at a glance it still wasn't going to go in.
At this point, I was more than a tad frustrated (probably because my hand had already been smashed a bit), so I just hit one side of it really hard. That was when we figured out that the cushioning was adjustable if you slammed into it...
So your couch moving story is worse than mine! At least you managed to figure it out in the end. :P Mistreatment of inanimate objects is a solution sometimes. xD