 Nyorai kupfuurira kweiyi ndima - Asunungurwa neRevolution yaFebruary, Piatnitsky akatamira kuMoscow, uko akava nhengo yeMoscow Committee yeBolshevik Party. Pashure peBolshevik Revolution yaNovember 1917, Piatnitsky akava mushandi wehurumende. Kubva muna 1919 kusvika muna 1920 akashanda semukuru weRailroad Workers Trade Union. Piatnitsky akasarudzwa semutungamiri weMoscow Committee muna 1920 uye akasarudzwa senhengo inotsiva yeCentral Committee yeRussian Communist Party maBolshevik ku9th Congress yebato.tsime iroro. 