kasparov became the youngest non-disputed world chess champion in 1985 at the age of 22. he held the official fide world title until 1993, when an argument with fide led him to set up a rival company, the professional chess association. he continued to hold the "classical" world chess championship until his defeat by vladimir kramnik in 2000. kasparov lost a match (a series of chess games) against "deep blue", a computer made by ibm, in 1997. lately, retired from competition, he has been coaching magnus carlsen, the young player from norway who is the current world #1.