1960 USSR Chess Championship

As a result of his recent training period with Alexander Tolush, he often sacrificed material.

The crowning moment for this attacking approach came in his winning against David Bronstein in the 16th round in a King's Gambit.

[3] After 15 rounds the leaders were Petrosian and Korchnoi with 11 points, Geller 10½ and Polugayevsky, Taimanov and Krogius 9.

Without completing the move, I left the hall, leaving a thousand fans, who were tensely following my game, in a state of bewilderment, which shortly turned to grief.

Korchnoi with black pieces deferred development of his knight to c6, and outplayed Geller in complications to score a priceless victory.