UKC

I once tried "Friend problem" at Berta Block in Berlin. I tried it with a friend(obviously ) and we managed to finish our routes after few attempts. It was so much fun using a human as a hold.

I am wondering whether any of the bouldering gyms in London has friend climbing routes/problems? 

"It was so much fun using a human as a hold."

It would concern me what part of me was used as a hold? I would hope hand jamming was not allowed. A bit of hair pulling maybe depending where. Is it case of anything goes surely there are rules?

Back in the day this was known as 'combined tactics' - especially re standing on someone;s shoulders when the start of a route was particularly hard.

What about a one finger pocket?

W

I know a pair of juggy routes

So was Goatse.cx actually a gaston?

"human as a hold" - lol funny responses to this. 

Here is an example, 

https://www.youtube.com/watch?v=D5Lil72g8nE&t=2s

Thats a great video!

Now I realise what it is, you should suggest it to your local gym and see if that can set one. I do like a bouldering gimmick