Timeline Garry Kasparov

Garry Kasparov 6

• 1984 – 1985 Karpov vs Kasparov 1984 match abandoned 48 games — no result The 1984 World Championship match between Karpov and Kasparov lasted 48 games over five months before FIDE president Campomanes controversially abandoned it with Karpov leading. It remains the longest World Championship match in history.
• 1985 – 2000 Kasparov World Champion reign Youngest undisputed champion in history Garry Kasparov became the youngest undisputed World Chess Champion in 1985 at age 22, defeating Karpov. He held the title for 15 years across four Karpov matches and a reign widely considered the most dominant in chess history.
• 1996 Kasparov defeats Deep Blue 4-2 First major man vs machine match Kasparov defeated IBM's Deep Blue 4-2 in Philadelphia in the first major match between a world champion and a computer under tournament conditions. Deep Blue won game 1 — the first time a computer beat a reigning champion in classical chess.
• 1997 Deep Blue defeats Kasparov 3½-2½ Machine beats champion for first time IBM's improved Deep Blue defeated Kasparov 3½-2½ in New York in the rematch, becoming the first computer to defeat a reigning World Champion in a classical match. The result shocked the world and marked a turning point in artificial intelligence.
• 1999 Kasparov reaches peak rating 2851 Highest FIDE rating ever at the time In 1999 Kasparov reached a FIDE rating of 2851, the highest ever recorded at the time. He held the world number one ranking continuously for 20 years, from 1984 until his retirement.
• 2005 Kasparov retires from professional chess End of an era Garry Kasparov announced his retirement from professional chess in March 2005. He subsequently became a prominent political activist and author.