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With some loss of tempo, White aims to establish control over Q5. This variation also occurred in the second and sixth games of Taimanov's Candidates match with Fischer earlier in 1971. In the second game Taimanov tried 8 ... Q-R4+, in the sixth he continued as he does here.

lOBxN PxB

11N-R3 N-K2

A new move. Taimanov had previously tried 11 . . . N-Q5 12 N-B4

P-B4 13 PxP NxKBP 14 B-Q3 R-Bl 15 BxN RxN 16 BxB PxB 17 Q-K2± with little success for Black, Fischer-Taimanov, game 6.

In the first Fischer-Petrosian match game, Buenos Aires 1971, Black played 11 . . . P-Q4! and obtained an excellent position after 12 PxP BxN 13 PxB Q-R4 14 Q-Q2 0-0-0 15 B-B4 KR-N1. Unfortunately for Taimanov, however, Petrosian's innovation, dreamed up by Suetin, was not unveiled in Buenos Aires for another fifteen days!

The knight is recentralized with the immediate threat of establishing a bind on Q5 by 13 N-K3, so Black must free himself at once.

13 PxP NxP

14 NxN BxN

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