Russia and Soviet Union — chess championships
Chess Championship of Russian Empire (1899-1914)
[7 editions]
Soviet Chess Championship — open (1920-1991)
[58 editions]
Soviet Chess Championship — women (1927-1991)
[51 editions]
Leningrad City Chess Championship (1920-1991)
[64 editions]
URL: https://www.olimpbase.org/ind-urs/_series.html