Answer
No, Sergei Korolev did not succeed in implementing his plans for a Soviet crewed Moon landing before his death. Korolev was a Soviet rocket scientist and engineer who is widely considered to be one of the pioneers of spaceflight. He is credited with leading the development of the R-7 Semyorka, the world's first intercontinental ballistic missile, and the Vostok spacecraft, which carried the first human into space.