Schoepp, who won global gold in 1988 and 2010, had to withdraw from last year's World Championships following a serious injury just before the competition started in Canada.
In her absence Germany didn't make it out of the round-robin stage however Schoepp got her rink off to the perfect start by beating Sidorova's European champions first up.
Russia went in front in the ninth end when Sidorova hit to score three points to make it 9-8 however Schoepp's rink scored three points with their last stone for an 11-9 victory.
And Schoepp said: "I just want to have fun here, and have some good games, and then we will see what happens. Anything will be better than lying in a bed in a hospital like last year."
Meanwhile USA skip Erika Brown also got her campaign off to a winning start with a 10-3 victory over Italy while Switzerland skip Silvana Tirinzoni led her rink rink to a 7-6 win against Japan.
Chinese skip Bingyu Wang made an irrecoverable start against Danish counterpart Lene Nielsen handed them a steal of three points in the fourth end and then steal five in the fifth.
Leading 10-0, Denmark eventually ran out 11-4 winners and skip Nielsen believes such a big victory in their first game of the World Championships could prove to be vital later down the line.
"It's really important that we started with a win. We wanted to keep it simple, get a feel for the ice, and just get started," said Nielsen.
"We've never beaten this team before. But the ice was quite tricky and both teams struggled with draw-weight and we figured it out on top, so I'm glad about that."
- Sports & Recreation