Jump to content

Welcome to BrainDen.com - Brain Teasers Forum

Welcome to BrainDen.com - Brain Teasers Forum. Like most online communities you must register to post in our community, but don't worry this is a simple free process. To be a part of BrainDen Forums you may create a new account or sign in if you already have an account.
As a member you could start new topics, reply to others, subscribe to topics/forums to get automatic updates, get your own profile and make new friends.

Of course, you can also enjoy our collection of amazing optical illusions and cool math games.

If you like our site, you may support us by simply clicking Google "+1" or Facebook "Like" buttons at the top.
If you have a website, we would appreciate a little link to BrainDen.

Thanks and enjoy the Den :-)
Guest Message by DevFuse


Member Since 07 Aug 2012
Offline Last Active Oct 25 2013 03:59 AM

Posts I've Made

In Topic: Drawing a long line

24 October 2013 - 02:18 AM

Spoiler for in the hypothetical third dimension

In Topic: Filling a room

11 October 2013 - 01:30 PM


Proof that the method works is inductive on n. (Left as exercise to reader.)


By the way, I wasn't just being coy here. The proof is a bit interesting--contains one or two knots that have to be thought-through carefully--and is worth taking five minutes to lay out.

In Topic: Filling a room

11 October 2013 - 04:45 AM

Spoiler for Recursively:

In Topic: Up

24 July 2013 - 07:17 PM

Spoiler for If the ropes are at least 500


Spoiler for Of course, if we've got that much rope


Spoiler for Now if we want to stretch the bounds...

In Topic: Chain conundrum

08 July 2013 - 02:40 PM



I'm going to go more-mathematical:

Spoiler for halfway there