Garry

Gary isn't Garry, as they're not the same person. They're not related. In mathematics, they're labels put on different objects.

In 1985, Garry Kasparov played a simultaneous against 32 computers and won all of the games.

In 1996, Garry Kasparov played a 6-game match against Deep Blue, IBM's supercomputer, and won 4 x 2.

In 1997, in a second match (the first one had occurred the year before), IBM supercomputer Deep Blue defeated Grand Master Garry Kasparov by 3.5 X 2.5.

That was the first time, in the history of chess, that a machine (Deep Blue) defeated a Grand Master (Garry Kasparov).

Deep Blue, a supercomputer created by IBM in the nineties to play chess at the highest level, was retired (destroyed?) after the second match, played in 1997, against Grandmaster Garry Kasparov. Much controversy still exists around these historical matches.

In six years, Anatoly Karpov and Garry Kasparov played against each other five matches (144 games, 5540 moves) for the world chess championship.