A series of six-game chess matches took place between Garry Kasparov, the reigning world chess champion at the time, and Deep Blue, an IBM supercomputer. The first match occurred in Philadelphia in 1996, resulting in Kasparov’s victory with a score of 4–2. The rematch took place in New York City in 1997, where Deep Blue emerged as the winner with a score of 3½–2½. This rematch marked the first time a computer defeated a reigning world chess champion in a tournament setting, garnering significant attention and inspiring the documentary film titled “Game Over: Kasparov and the Machine.”
Game 5 of the 1996 match turned out to be a pivotal moment, as it marked a turning point. The opening of this game followed the pattern of the Scotch Four Knights Game, which combines elements from both the Scotch Game and the Four Knights Game. Deep Blue’s decision to reject Kasparov’s draw offer after the 23rd move made this game particularly embarrassing for their team. Notably, this was the sole game in the entire match where the Black side emerged victorious.