Efim Bogoljubov

Efim Dmitrievich Bogolyubov (April 14 [26], 1889, Stanislavchik, Kiev province - June 18, 1952, Triberg) - Russian and German chess player. Two-time champion of the USSR (1924, 1925), contender for the title of world chess champion. At the competitions he represented the Russian Empire, USSR, Germany

Games
Efim Bogoljubov player profile and games at Chessgames.com