The 1990 World Chess Championship between Anatoly Karpov and Garry Kasparov was held from October 8 to December 30. The first 12 games were played in New York, USA, and the last 12 in Lyon, France.
The prize money was three million dollars, 5/8 of which went to the winner.
With a final score of 12½ to 11½, Garry Kasparov retained the title of World Chess Champion.