Bogdanovich: The Creative Power of Bogoljubov - Vol. 1Pawn Play, Sacrifices, Restriction and More Efim Bogoljubov was one of the worlds very strongest players in the 1920s and 1930s. Twice he played Alexander Alekhine for the world championship title (1929 and 1934) and he won the famous Moscow 1925 tournament, ahead of Jose Capablanca, Emanuel Lasker and many other stars. He also won the Soviet championship in 1924 and 1925, as well as a host of other international tournaments. His play featured many