Changes

a Russian mathematician and computer scientist<ref>5th from the left in the [https://cdn-s-static.arzamas.academy/uploads/ckeditor/pictures/17078/content_endspiel.jpg photo] (presumably Dec 1975) in an [https://arzamas.academy/materials/2233 article] on the Arzamas website</ref>. In the 70s at the Institute for System Studies (VNIISI) in [https://en.wikipedia.org/wiki/Moscow Moscow], he researched on solving chess endgames, along with [[Edward Komissarchik]] on KQP(g7)KQ (1974), with [[Vladimir Arlazarov]] on [[Rook Endgame#KRPKR|KRPKR]] (19791976)<ref>[https://ruchess.ru/news/report/yuriy_averbakh_/ Yuri Averbakh] ('''1976'''). ''The Bet.'' in [https://ru.wikipedia.org/wiki/%D0%97%D0%BD%D0%B0%D0%BD%D0%B8%D0%B5_%E2%80%94_%D1%81%D0%B8%D0%BB%D0%B0 Znanie - sila], No. 8, pp. 53-54, [http://publ.lib.ru/ARCHIVES/Z/%27%27Znanie_-_sila%27%27/_%27%27Znanie_-_sila%27%27.html link]</ref>. Based on [[Ernst Zermelo|Zermelo's]] justification <ref>[[Ernst Zermelo]] ('''1913'''). ''Über eine Anwendung der Mengenlehre auf die Theorie des Schachspiels'' Proc. Fifth Congress Mathematicians, (Cambridge 1912), Cambridge Univ. Press 1913, 501–504. Translation: ''On an Application of Set Theory to the Theory of the Game of Chess''. see Appendix in [https://www.uni-hohenheim.de/organization/person/prof-dr-ulrich-schwalbe Ulrich Schwalbe], [http://www.econ.canterbury.ac.nz/personal_pages/paul_walker/psw.htm Paul Walker] ('''1997'''). ''Zermelo and the early history of game theory''. [http://abel.math.harvard.edu/~elkies/FS23j.03/zermelo.pdf pdf]</ref> they applied [[Retrograde Analysis|retrograde analysis]], using [[Bitboards|bitboards]] in coding the chess board.