Aron Nimzovich was one of the strongest players of chess in the world and was definitely the strongest writer about chess in the world. His books "My System", Chess Praxis" and "Die Blockade" have been studied at an early age by virtually every strong chess player in the world.Nimzovich was Russian Champion in 1913 jointly with Alexander Alekhine at St.Petersburg. He won a string of international events in the mid-1920s which led him to challenge Jose Raul Capablanca to a World Championship match in 1925, but negotiations failed after monetary backing could not be found. He took first place at Copenhagen (1923), Dresden (1926), Karlsbad (1929) and Frankfurt (1930). He is credited with being one of the principal inventors and developers of the Hypermodern School of Chess. The Hypermodern idea is to allow the opponent to occupy the center and then chip aware at it from the sides until it collapses. Nimzovitch is credited with inventing the Queen's Indian Defense and the Nimzo-Indian Defense, two of the most popular defenses played at the world championship level today. There are many opening and variations named after Nimzovich.