"1921 World Chess Championship". Archived from the original on January 20, 2005. Retrieved November 21, 2008. This cites: a report of Lasker's concerns about the location and duration of the match, in the New York Evening Post, March 15, 1911; Capablanca's letter of December 20, 1911, to Lasker, stating his objections to Lasker's proposal; Lasker's letter to Capablanca, breaking off negotiations; Lasker's letter of April 27, 1921, to Alberto Ponce of the Havana Chess Club, proposing to resign the 1921 match; and Ponce's reply, accepting the resignation.
Tartakower, S.G.; du Mont, J. (1975). 500 Master Games of Chess. Courier Dover Publications. p. 270 (game number 209). ISBN0-486-23208-5. Retrieved December 29, 2008. steinitz lasker.
"Lasker: New Approaches". Lasker-Gesellschaft. Archived from the original on July 26, 2011. Retrieved November 21, 2008.; also available at "Lasker: New Approaches"(PDF). ChessCafe. Retrieved May 2, 2008.. This refers to Sieg, Ulrich; Dreyer, Michael (2001). Emanuel Lasker: Schach, Philosophie und Wissenschaft (Emanuel Lasker: Chess, Philosophy and Science). Philo. ISBN3-8257-0216-2..
Winter, Edward. "How Capablanca Became World Champion". ChessHistory. Retrieved June 5, 2008. Winter cites: American Chess Bulletin (July–August 1920 issue) for Lasker's resignation of the title, the ACB's theory about Lasker's real motive and Havana's offer of $20,000; Amos Burn in The Field of July 3, 1920, the British Chess Magazine of August 1920 and other sources for protestations that Lasker had no right to nominate a successor; Amos Burn in The Field of July 3, 1920, and E.S. Tinsley in The Times (London) of June 26, 1920, for criticism of the conditions Lasker set for the defense of the title; American Chess Bulletin September–October 1920 for Lasker's and Capablanca's statements that Capablanca was the champion and Lasker the challenger, for Capablanca's statement that Lasker's contract with Rubinstein had contained a clause allowing him to abdicate in favor of Rubinstein, for Lasker's intention to resign the title if he beat Capablanca and his support for an international organization, preferably based in the Americas, to manage international chess. Winter says that before Lasker's abdication some chess correspondents had been calling for Lasker to be stripped of the title. For a very detailed account given by Capablanca after the match, see Capablanca, José Raúl (October 1922). "Capablanca's Reply to Lasker (presented by Edward Winter)". British Chess Magazine. Retrieved June 5, 2008.
"Lasker's greatest skill in defense was his ability to render a normal (inferior) position chaotic": Crouch, C. (2000). How to Defend in Chess. Everyman. ISBN1-85744-250-4.; review including this quotation at Watson, J. "How to Defend in Chess: review". JeremySilman. Archived from the original on September 7, 2008. Retrieved November 19, 2008.
Crouch, C. (2007). "Game 9". How to Defend in Chess: Learn from the World Champions. Gambit Publications. ISBN978-1-904600-83-1. Archived from the original on September 7, 2008. Retrieved December 29, 2008.
"Lasker: New Approaches". Lasker-Gesellschaft. Archived from the original on July 26, 2011. Retrieved November 21, 2008.; also available at "Lasker: New Approaches"(PDF). ChessCafe. Retrieved May 2, 2008.. This refers to Sieg, Ulrich; Dreyer, Michael (2001). Emanuel Lasker: Schach, Philosophie und Wissenschaft (Emanuel Lasker: Chess, Philosophy and Science). Philo. ISBN3-8257-0216-2..
Lasker wrote "I who vanquished him must see to it that his great achievement, his theories should find justice, and I must avenge the wrongs he suffered". Lasker, Emanuel (1960) [1925]. Lasker's Manual of Chess. Dover. ISBN0-486-20640-8. Retrieved May 31, 2008.
measuringworth.com
Using incomes for the adjustment factor, as the outcome depended on a few months' hard work by the players; if prices are used for the conversion, the result is over $99,000—see "Six Ways to Compute the Relative Value of a U.S. Dollar Amount, 1774 to Present". MeasuringWorth. Retrieved May 30, 2008. However, Lasker later published an analysis showing that the winning player got $1,600 and the losing player $600 out of the $4,000, as the backers who had bet on the winner got the rest: "From the Editorial Chair". Lasker's Chess Magazine. 1. January 1905. Retrieved May 31, 2008.
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Emanuel Lasker's Manual of Chess is the most expressly philosophical chess book ever written" Shibut, M. "Modern Chess Anarchy?". Archived from the original on December 3, 2008. Retrieved November 21, 2008.
"1921 World Chess Championship". Archived from the original on January 20, 2005. Retrieved November 21, 2008. This cites: a report of Lasker's concerns about the location and duration of the match, in the New York Evening Post, March 15, 1911; Capablanca's letter of December 20, 1911, to Lasker, stating his objections to Lasker's proposal; Lasker's letter to Capablanca, breaking off negotiations; Lasker's letter of April 27, 1921, to Alberto Ponce of the Havana Chess Club, proposing to resign the 1921 match; and Ponce's reply, accepting the resignation.
"Lasker: New Approaches". Lasker-Gesellschaft. Archived from the original on July 26, 2011. Retrieved November 21, 2008.; also available at "Lasker: New Approaches"(PDF). ChessCafe. Retrieved May 2, 2008.. This refers to Sieg, Ulrich; Dreyer, Michael (2001). Emanuel Lasker: Schach, Philosophie und Wissenschaft (Emanuel Lasker: Chess, Philosophy and Science). Philo. ISBN3-8257-0216-2..
"Lasker's greatest skill in defense was his ability to render a normal (inferior) position chaotic": Crouch, C. (2000). How to Defend in Chess. Everyman. ISBN1-85744-250-4.; review including this quotation at Watson, J. "How to Defend in Chess: review". JeremySilman. Archived from the original on September 7, 2008. Retrieved November 19, 2008.
"
Emanuel Lasker's Manual of Chess is the most expressly philosophical chess book ever written" Shibut, M. "Modern Chess Anarchy?". Archived from the original on December 3, 2008. Retrieved November 21, 2008.
Crouch, C. (2007). "Game 9". How to Defend in Chess: Learn from the World Champions. Gambit Publications. ISBN978-1-904600-83-1. Archived from the original on September 7, 2008. Retrieved December 29, 2008.
Using incomes for the adjustment factor, as the outcome depended on a few months' hard work by the players; if prices are used for the conversion, the result is over $99,000—see "Six Ways to Compute the Relative Value of a U.S. Dollar Amount, 1774 to Present". MeasuringWorth. Retrieved May 30, 2008. However, Lasker later published an analysis showing that the winning player got $1,600 and the losing player $600 out of the $4,000, as the backers who had bet on the winner got the rest: "From the Editorial Chair". Lasker's Chess Magazine. 1. January 1905. Retrieved May 31, 2008.