If you are looking for an answer to the question What is Artificial Intelligence? and you only have a minute, then here's the definition the Association for the Advancement of Artificial Intelligence offers on its home page: "the scientific understanding of the mechanisms underlying thought and intelligent behavior and their embodiment in machines."
However, if you are fortunate enough to have more than a minute, then please get ready to embark upon an exciting journey exploring AI (but beware, it could last a lifetime) …
See also:Monty Newborn and Monroe Newborn. 1997. Kasparov Vs. Deep Blue: Computer Chess Comes of Age. Springer-Verlag New York, Inc., Secaucus, NJ, USA.Monty Newborn. 2003. Computer chess. In Encyclopedia of Computer Science (4th ed.), Anthony Ralston, Edwin D. Reilly, and David Hemmendinger (Eds.). John Wiley and Sons Ltd., Chichester, UK 336-339.Recent Progress in Computer Chess. In ADVANCES IN COMPUTERS, Volume 18, edited by Marshall C. Yovits, Academic Press, 1980.Monty Newborn. 1990. The 20th annual ACM North American computer chess championship. Commun. ACM 33, 7 (July 1990), 92-104.Monroe Newborn, Computer Chess: Ten Years of Significant Progress, In: Marshall C. Yovits, Editor(s), Advances in Computers, Elsevier, 1989, Volume 29, Pages 197-250.New York: Academic Press