New York 1927
Alexander Alekhine was the fourth world chess champion, holding the title from 1927-1935 and then from 1937-1946. His tournament books, with deep yet clear annotations have all become classics. His complicated, tactical style set him apart from his peers. He is reputed to have said that in order to beat him, an opponent had to defeat him in the opening, then the middlegame and finally the endgame.