Boris Grigorievich Kudryavtsev (February 4, 1922, Kursk[1] – March 25, 1943, Kyzylorda) was a Leningrad schoolboy and later an employee of the Institute of Ethnography of the USSR Academy of Sciences, who made a significant contribution to the decipherment of Rongorongo.

[3] In 1938, upon seeing among the Polynesian collection items gifted to the museum by Nikolay Miklukho-Maklai two "kohau rongorongo", Kudryavtsev became interested in the tablets and the writings on them and decided to attempt deciphering them with the participation of Baitman and Zhamoyda.

[4] During the Great Patriotic War, Boris Kudryavtsev was evacuated as a research associate of the Institute of Ethnography of the USSR Academy of Sciences, having been enlisted on July 7, 1942.

Olderogge, and his article "The Writing of Easter Island" was published in 1949 in the Collection of the Museum of Anthropology and Ethnography of the USSR Academy of Sciences.

Numerous shorter parallel fragments were later found using statistical analysis of the texts of tablets N and R. Kudryavtsev's unfinished research enabled work to begin on creating a comprehensive catalog of signs, determining allographs, and more.