Budapest Candidates Tournament (Match-turnir v Budapeshte), 1950. In Russian

Матч-турнир в Будапеште 1950. Бюллетень Комитета по делам физкультуры и спорта при Совете Министров СССР.
Москва: Издание газеты «Вечерняя Москва», типография издательства «Московская Правда», 1950.
№№ 1–20 (полный комплект). Мягкие издательские обложки (газетного типа), большой формат. 
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Budapest Candidates Tournament 1950. Bulletin of the Committee for Physical Culture and Sports under the Council of Ministers of the USSR.
Moscow: Published by Vechernyaya Moskva newspaper, printed by Moskovskaya Pravda publishing house, 1950.
Issues №№ 1–20 (complete set). Publisher’s softcovers (newspaper style), large format. 

This is a remarkably rare complete set of all 20 bulletins documenting the 1950 Budapest Candidates Tournament, one of the most significant events in the history of modern chess. Following the 1948 World Championship, this was the first formal "Candidates" stage in the new FIDE world title cycle, held to determine who would face Mikhail Botvinnik.
The tournament featured an elite gathering of the world's greatest minds: the legendary David Bronstein, the brilliant theoretician Isaac Boleslavsky, future world champion Vasily Smyslov, and the "eternal contender" Paul Keres. These bulletins offer a vivid, round-by-round account of the fierce competition. They include move-by-move notations of every game, profound analytical commentary from leading Soviet masters, and detailed standings as the battle progressed.
Historically, this set is invaluable for its coverage of the dramatic tie between Bronstein and Boleslavsky, which necessitated a playoff match later that year. Published under the auspices of the USSR Sports Committee and printed by "Vechernyaya Moskva," these bulletins were intended for professional study and immediate distribution. Due to the high-acid paper typical of the 1950s and the ephemeral nature of daily sports publications, a complete set of all 20 issues is exceptionally difficult to find today. It is a cornerstone piece for any serious chess historian or collector of Soviet sports memorabilia.