Юрий Семёнович Гусев is a 'Soviet chess player', he was active for Trud in Moscow. Participant of many Moscow championships and (semi-finals) of the USSR championship. In 1951 he received the title Master of Sport of the USSR in chess.
Gusev was awarded medals 'For the Defense of Moscow', 'For Battle Merit', 'Order of the Red Star' and 'Order of the Patriotic War, 2nd class'.
After the war ended he studied to be a radio engineer.
Moscow Championship 1955
≠ USSR Championship (1955)
Master Gusev is behind the board, Evgeny Sveshnikov, Jan Plachetka and Igor A Zaitsev are standing.
Y Gusev vs E Auerbach, 1946
Closer look (with annotations) http://www.talkchess.com/forum3/vie...
Several players' bios - more infos on Gusev's later active career, can be found here
from 'Шахматисты, встретившие День Победы' by Konstantin Shmagin, 2020 (in Russian)