{{Use dmy dates|date=August 2022}} thumb|Hermann Keidanz in 1910 {{chess notation}} '''Hermann Keidanski''' (later '''Keidanz''' and '''Kaidanz'''; November 4, 1865, – December 1938, Germany) was a German-Jewish chess master.<ref>{{cite web |url=https://www.chesshistory.com/winter/winter41.html#5362._Four-move_game |title=Chess Notes by Edward Winter: 5364. Keidanz |website=ChessHistory.com |date=31 December 2007 |accessdate=2013-12-09}}</ref>
Keidanski was born in Großendorf, West Prussia (now Władysławowo, Poland), he came to Berlin where he participated in many chess tournaments in the 1890s. He tied for 8-9th at Cologne in 1898 (the 11th DSB Congress, ''Hauptturnier A'', Ottokar Pavelka won), took 2nd, behind Julius Finn, at New York City in 1903, and tied for 5-6th at New York State Chess Association in 1907.<ref>{{cite web |url=http://www.chessmetrics.com/cm/CM2/PlayerProfile.asp?Params=199510SSSSS3S063455000000141000000000015910100 |title=Player Profile: Hermann Keidanski |website=Chessmetrics.com |date=2005-03-26 |accessdate=2013-12-09 |url-status=live |archiveurl=https://web.archive.org/web/20060414132700/http://www.chessmetrics.com/ |archivedate=2006-04-14}}</ref>
He lost a match to Carl August Walbrodt (1–5) in 1891, and won against Eugene Delmar (4–1) in 1902.<ref>{{cite web |url=http://www.edochess.ca/players/p1007.html |title=Edo Ratings, Keidanski, H. |website=Edochess.ca |date= |accessdate=2013-12-09}}</ref>
His name is attached to the '''Keidanski Variation''' in the Prussian Defence (1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.e5 d5 6.Bb5 Ne4 7.Nxd4 Bc5 8.Nxc6!? '''Bxf2+''' 9.Kf1 '''Qh4!'''). Analysis by Dr. Hermann Kaidanz appeared in the ''Wiener Schachzeitung'' in 1904.<ref>{{cite web |url=http://www.chesscafe.com/text/kibitz46.txt |title=Interesting Byways in the Classic Open Games |first=Tim |last=Harding |authorlink=Tim Harding (chess player) |date=March 2000 |website=The Chess Cafe |url-status=dead |archive-url=https://web.archive.org/web/20000822091241/http://www.chesscafe.com/text/kibitz46.txt |archive-date=2000-08-22}}</ref> He also analysed the '''Keidansky Gambit''' (1.e4 e5 2.Bc4 Nf6 3.d4 exd4 4.'''Nf3''' Nxe4 5.'''Qxd4''').<ref>{{cite web |url=http://64squar.es/openings/show/1302 |title=Openings |website=64squar.es |url-status=dead |archive-url=https://web.archive.org/web/20110720133320/http://64squar.es/openings/show/1302 |archive-date=July 20, 2011}}</ref>
== References == {{reflist}}
== External links == * {{cite web |url=https://www.365chess.com/players/Hermann_Keidanski |title=Hermann Keidanski |website=365Chess.com}}
{{DEFAULTSORT:Keidanski, Hermann}} Category:1865 births Category:1938 deaths Category:People from Władysławowo Category:People from West Prussia Category:19th-century German Jews Category:Jewish chess players Category:19th-century German chess players Category:Chess theoreticians Category:Sportspeople from Pomeranian Voivodeship Category:20th-century German chess players
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