In the middle of the third period, Conor Sheary passed sideways to the Russian who nipped directly into the nearest left cross and saw his 72nd playoff goal, which meant 4-1, rattle in the net behind his Russian compatriot Sergei Bobrovsky.
The hall turned into a red rocking sea as thousands of fans in red shirts stood up to applaud the performance.
Then it ran away at the end and Johan Larsson got his first playoff point in this year's playoffs by being involved and preparing for Garnet Hathaway's final 6-1.
Nicklas Bäckströml made one of his two assists to Marcus Johansons 2-1, which became the match-winning goal, in the second period.
Bäckström also got an assist at 3-1.
The fourth match, the night before Tuesday, will also be played in the capital.