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Richard Kenneth Guy was a British mathematician, with a passion for chess. Siegfried Hornecker's "Study of the Month" is all about this great "Guy", his life, and his studies. The professor of mathematics, who composed almost 200 endgame studies for the "British Chess Magazine", died last year at the age of 103. | Photo: Wikipedia
€29.90 Percentage female? When analyzing ratings and their distribution among United States Chess Federation (US Chess or USCF) members, keep in mind that there are fewer girls and women than boys and men. Among recent members (12/31/2020 or later expiration date), 12.4% are coded as female, 85.4% are coded as male, and 2.2% are uncoded (M. Nolan, personal communication, February 23, 2021). From 1972–2000, that percentage was 5% or lower. Al Lawrence, Executive Director of USCF from 1988-1996, wrote a memorandum, distributed to the USCF Policy Board and the Women’s Chess...