| Alexander Alekhine | Efim Bogoljubov |
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The chess professional Efim Bogoljubow (1889-1952) was a Russian German chess
grandmaster who received the German citizenship 1927. He was the best chess player in Germany and won many chess tournaments.
Alekhine – Bogoljubov 15.5 : 9.5 (+11 −5 =9)
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How Chess Grandmaster Igor Smirnov developed his chess teaching system.