Pushing the g-pawn early in the game has become so common that when GM Jon Speelman watches Shakhriyar Mamedyarov play, he feels tempted to bet with himself when ‘the bayonet’ will be deployed. This week’s thematic column features a couple of classics (by Paul Keres and Alexei Shirov), an example from Mamedyarov’s practice and a remarkable win by Richard Pert from the British Championship. | Photo: Niki Riga