Hermann Keidanski (later Keidanz and Kaidanz; November 4, 1865, – December 1938, Germany) was a German-Jewish chess master.
[1] 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.
[2] He lost a match to Carl August Walbrodt (1–5) in 1891, and won against Eugene Delmar (4–1) in 1902.
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