Just curious on some further background about the destruction of Ukrainian hockey by the Soviet Union post World War II? How exactly was this carried out?
Regarding clubs, the Soviets categorically banned all previously existing organizations and established their own, but this was before Latvia was annexed and the game really spread to the Soviet Union from Riga a little bit later so there wasn't a lot of support for ice hockey as it didn't exist elsewhere in Soviet Ukraine except these newly annexed territories (formerly Romanian Bukovina also had some teams). Those athletes not subject to political repression could still join the new Dynamo, Spartak, Burevestnik societies and play some games, including a small championship tournament eventually. This was the pinnacle of all Soviet hockey at the time.
Soon after, the area fell under German occupation and the ethnic Ukrainian pre-war team Ukraina Lwów/Lviv was reactivated, but many players fled with the Germans or were punished for their collaboration after the war while the Poles generally repatriated to the new territory of Poland and hockey didn't recover even to the extent it had existed during the first period of Soviet rule. A small exception was the Carpatho-Ukrainian region that was only at this point annexed from Czechoslovakia, Spartak Uzhhorod even participated in the first edition of the Soviet league in 1946. But really Kyiv and Kharkiv were the relevant centers of Ukrainian hockey from that on.
Regarding players, you had many rounds of political repression and most of those that hadn't already been imprisoned or executed fled overseas or were repatriated to Poland. So in short the fabric was broken and the actors dispersed, some of it intentionally and some due to the innate flaws of the Soviet rule.