Arnold Dozenegger 

Copyright 2007 by Bill Gosper (rwg@osots.com)

Can you be the first to fit the dozen disks into the ovoid cavity?  It's only a matter of time before superhuman puzzle-cooker Emma Cohen gets her hands on one of these and claims primacy. The solution is permuted on the bottom, but decoding it would be cheating.  When you eventually quit in despair, let a little kid replace the pieces in their proper holes.  They love that.

http://gosper.org/new/, ...org/Huddle.RTF, ...org/Arnold.rtf, ...org/7^3.rtf
www.tweedledum.com/rwg/