Yuri Semyonovich Gusev (born September 25, 1921) is a Soviet chess player who was a Merited Master of Sport of the USSR (1951).
Gusev peaked with a classical Elo rating of 2,380,[1] making him the equivalent of a FIDE Master in terms of strength, although it is not clear what title he ultimately achieved.
[2] The game itself was not part of a major competition, but Gusev's Immortal has been brought from obscurity in the 21st century and has been widely recognized for its long-term strategic brilliance.
The queen sacrifice itself is not noticed as a good idea by most of the strongest engines unless run to extreme depths, with one user in the comments section of a 2012 YouTube video in 2020 stating it took Stockfish 11 (the strongest engine at the time) six hours and 48 minutes at Depth 73/49 to recommend the queen sacrifice and see that it was winning by +4.07.
[5][6] Had Gusev and Auerbach played the objectively best moves at every point after his brilliancy, the game would still be a victory for White.