Editing José Raúl Capablanca (section)

=== During World War I ===
[[World War I]] began in midsummer 1914, bringing international chess to a virtual halt for more than four years.<ref name="Reinfeld1942ImmortalGamesOfCapaBio" /> Capablanca won tournaments in New York in 1914, 1915, 1916 (with preliminary and final round-robin stages) and 1918, losing only one game in this sequence.<ref name="Golombek1959Capas100BestTowardsWorldChamp" /> In the 1918 event, Marshall, playing Black against Capablanca, unleashed a complicated counterattack, later known as the [[Marshall Attack#Marshall Attack|Marshall Attack]], against the [[Ruy Lopez]] opening. It is often said that Marshall had kept this secret for use against Capablanca since his defeat in their 1909 match;<ref>{{cite web|url=http://www.scottishcca.co.uk/books/marshall.html|title=The Total Marshall|date=15 April 2002|access-date=1 June 2009}}</ref> however, [[Edward Winter (chess historian)|Edward Winter]] discovered several games between 1910 and 1918 where Marshall passed up opportunities to use the Marshall Attack against Capablanca; and an 1893 game that used a similar line.<ref>{{cite web|url=http://www.chesshistory.com/winter/extra/marshallgambit.html|title=The Marshall Gambit|last=Winter|first=E.G.|access-date=1 June 2009}}</ref> This [[gambit]] is so complex that [[Garry Kasparov]] used to avoid it,<ref name="SilmanReviewMarshallAtt">{{cite web|url=http://www.jeremysilman.com/book_reviews_js/js_marshall_attack.html|title=Marshall Attack|last=Silman|first=J.|year=2004|access-date=1 June 2009|archive-date=12 April 2012|archive-url=https://web.archive.org/web/20120412033128/http://jeremysilman.com/book_reviews_js/js_marshall_attack.html|url-status=dead}}</ref> and Marshall had the advantage of using a {{chessgloss|prepared variation}}. Nevertheless, Capablanca found a way through the complications and won.<ref name="Fine1952WorldsGreatChessGamesCapa">{{cite book
 | author=Fine, R. | title=The World's Great Chess Games | chapter=José Raúl Capablanca| pages=109–121
 | year=1952 | publisher=André Deutsch (now as paperback from Dover)
 | author-link=Reuben Fine
}}</ref> Capablanca was challenged to a match in 1919 by [[Borislav Kostić]], who had come through the 1918 tournament undefeated to take second place. The match was to go to the first player to win eight games, but Kostić resigned the match after losing the first five.<ref name="Dumont1959MemoirOfCapa" /><ref>{{cite book
 | author=Winter, E. | title=World Chess Champions | page=58
 | year=1981 | publisher=Pergamon Press | isbn=0-08-024094-1 | author-link=Edward Winter (chess historian)}}</ref> Capablanca considered that he was at his strongest around this time.<ref name="Reinfeld1942ImmortalGamesOfCapaBio" /><ref name="Capa1939InterviewGrafico" />