The accelerated development of the White queen's bishop after 1 d4 Nf6 2 Bg5 was for many years considered a bizarre chess opening, practised only by a few individual 'eccentric' chessplayers scattered around the globe, including the Brazilian Octavio Trompowsky, after whom the variation was named. Then in the 1990s, after a chance discovery, the young English grandmaster Julian Hodgson started to play it on the UK and international chess circuit with dramatic success, scoring many short wins with dashing attacking play. By force of example, the opening then saw a rapid increase in popularity - to the extent that it is now regarded as 'main line' theory! This book presents a thorough survey of the development and latest trends in this exciting opening, together with illustrative games. A must for any competitive player.