IBM
The U.S. computer company IBM sponsored in many occasions chess tournaments, matches, and chess exhibitions. The two main events were the festival at Amsterdam between 1961 until 1981 and the matches between Kasparov and the computer Deep Blue in the late 1990’s.
The winners of Amsterdam were:
1961 Kick Langeweg, 1963 Lajos Portisch, 1964 Bent Larsen, 1965 Jan Hein Donner, 1966 Mikhail Botvinnik, 1967 Lajos Portisch, 1968 Lubomir Kavalek and David Bronstein, 1969 Lajos Portisch, 1970 Polugaevsky and Boris Spassky, 1972 Lev Polugaevsky, 1973 Tigran Petrosian, 1974 Boris Ivkov, Vladimir Tukmakov and Vlastimil Jansa, 1975 Ljubojevic, 1976 Vikor Korchnoi and Anthony Miles, 1977 Anthony Miles, 1978 Jan Timman, 1979 Vlastimil Hort and Gyula Sax, 1980 Anatoly Karpov and 1981 Jan Timman.
