qudrangular
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Erwin Voellmy — (9 September 1886, Herzogenbuchsee – 15 January 1951, Basel) was a Swiss chess master. [ [http://www.chesshistory.com/voellmy/index.html Erwin Voellmy ] ] Dr. Erwin Voellmy, a mathematics teacher by profession, edited for 40 years the chess… … Wikipedia
