They're also tough for people with different language/culture backgrounds from the author to solve. At 01:25 PM 10/17/00 -0400, mmotyka@lsil.com wrote:

Riddles ought to be tough for a machine to solve. Language and shades of meaning seem less easily rendered as mathematical problems than graphics.

Mike

Thanks! Bill Bill Stewart, bill.stewart@pobox.com PGP Fingerprint D454 E202 CBC8 40BF 3C85 B884 0ABE 4639