On Wed, May 02, 2001 at 12:19:48AM -0500, Scott G. Miller wrote: > > > > Now you just need to suggest a puzzle which is machine generatable, not > > machine solvable, and not too obnoxious. > > Heres one idea, but I dont think it generates enough information for a > key. I define "enough information" to be greater than 2^32 choices for > someone to do a brute force insertion to cover all the possibilities > mechanically. > > Easy: Generate an image that contains a polygon formed from sparse, > non-connected dots more densly packed where the letter is. Make it > significantly random. Machine vision programs will suck at this, neural > nets can do it but they have to be fairly large and will be slow. > Then present a 4 x 4 tile of line drawings. Ask the user to pick which > one looks like the dotgram.
I can already think of how to have a computer defeat this. If you are