At the 1988 USSR Championship he finished tied for third with Artur Yusupov, behind Anatoly Karpov and Garry Kasparov.

In the 1988 Candidates Tournament for the 1990 Classical Chess World Championship he was defeated in the round of 16 (the first match) by Jan Timman (+0−1=5).

[3] In 1994, he won both the 16-player Tilburg knockout event and the thematic Polugaevsky 60th Birthday Tournament in Buenos Aires,[4] defeating Karpov with both colors in the latter.

[5][6] A resident of Spain, he tied for 3rd to 5th place in the Category 19 strength Dos Hermanas International Tournament in 1997.

[8] In a long May 2015 interview with Chess-News,[9] he touched on a number of subjects, in particular, how for various reasons he was forced out of competitive chess (due to a lack of invitations), that the Kasparov–Karpov matches were a Kabbalistic "ritual" of Freemasonry, that the Kasparov–Anand match at the World Trade Center was related to the 11 September terrorist attacks in the United States, and other sundry theories.