A set of common sense rules design to eliminate possibilities and help find a solution faster.
http://www.exsys.com/demomain.html
http://start.csail.mit.edu/index.php
http://www.teachrose.com/
https://translate.google.com/
Visit the following sites. read about the programs and try them out. describe the techniques you think each might use to try to achieve "intelligence"
http://www.20q.net/
http://www.mathsisfun.com/games/connect4.html
By Victor Castro