I saved this one for last because you say it's hard but I found it to be the easiest. Four hours building isn't really much when you try to do a hard puzzle. I usually spent a couple days when I do a challenging map with building and testing, and testing, and testing.
Nice map nevertheless. Only complaint is that you have to guess where the connection from the button goes to. If you replaced the antline with signage it would be less confusing.
http://youtu.be/bozAUS9rq1c

@Не связывайся со мной

i smell a troll

Come your welcome to try, lot of friends had tried and have fun, just test a little bit your intelligence!!

OMG THIS SUX I WONT TRY IT LSDOSALDASDOASDLD
I HAVENT TRIED THIS SO ILL THUMB IT DOWN SADOAKADKAKDSKD

it didn't work

The map shoul appear in your queue and press double click on it and thats it!

then what??

click on the 'Subscribe' button and then in the game go to play single player, community chambers. The map will be in your queue.

how do i play it?

Great!!!! I hope you´ll enjoy it!!! Thank you!

I will play