i think the coin/cork solution could be solved with one way,
but you may not like it :)

Posted on 2004-11-16 16:25:33 by abc123
distort space so that the inside of the bottle ends up outside and the rest of the universe inside!
Posted on 2004-11-17 09:42:16 by HeLLoWorld
Qweerdy, don't mean to be touting my own solution but I think it is clean enough. There is a non obvious bit and thats where the problem lay but the bulk of it is simply tieing up loose ends and doesn't really need to be said.
Posted on 2004-11-17 11:17:42 by Eóin
For those who want so many more of these riddles (actually so many that it can take you a lifetime to solve) here is the link to the Ultimate riddle site -
http://www.ocf.berkeley.edu/~wwu/riddles/intro.shtml
Posted on 2004-11-18 14:17:21 by clippy
I thought this was the ultimate riddle site.

:-D
Posted on 2004-11-19 03:17:54 by Sephiroth3
E?in, I agree that your solution is well written, and in any case is better written than my own (I didn't really write out the full procedure, being content with convincing myself that it would work). However, I was hoping there would be a more general solution that didn't depend so much on the parameters of the problem (number of coins).
I'm not saying there isn't such a solution btw, just saying that I've given up on finding one :)

Going to check out the other riddle sites now :)
Posted on 2004-11-22 03:21:09 by Qweerdy

now i will try the hardest problem (solving this probs is a HUGE ego-boost btw :D)

True true :)
Posted on 2004-11-29 08:20:06 by AceEmbler
This is called Quzzle, which was found using a computer. It is supposedly the hardest 15 puzzle possible for these particular pieces (the solution tree is both very wide and very deep).

http://www.puzzleworld.org/SlidingBlockPuzzles/quzzle.htm
Posted on 2004-12-07 02:39:32 by Miko