A Startling Move

In this game, played during the Piatigorsky Cup tournament of 1966 in Santa monica California, pictured Danish GM Bent Larsen (1935-) defeated World Champion Tigran Petrosian (1929-1984). Never before has a World Champion been so caught with his pawns down as was Petrosian as Black in this Sicilian Defense against Larsen. A profound conception, based on niggling tactics, triggered the irrefutable 25.Qxg6. The follow-up to the most startling move in the entire event was crystal clear.