World champions Tatiana Volosozhar and Maxim Trankov claimed a second gold for themselves and the Olympic hosts as they led a Russian 1-2 in pairs figure skating.
Already team gold medallists, Volosozhar and Trankov led all the way to seal the title ahead of teammates Ksenia Stolbova and Fedor Klimov with Germany's Aliona Savchenko and Robin Szolkowy taking their second Olympic bronze.
Trankov, 30, fell to his knees with his fists clinched above his head after their performance to the rock opera "Jesus Christ Superstar" as Volosozhar, 27, buried her face in her hands with tears in her eyes.
Skaters from the Soviet Union and Russia won 12 straight titles until the 2010 Vancouver Games when they failed to medal.
Volosozhar and Trankov extended their 4.53-point lead from the short programme to finish 18.18 points ahead of Stolbova and Klimov, who had also won team gold. They scored 152.69 for the free skate and 236.86 overall.
Stolbova, 21, and Klimov, 23, brought the house down with their entertaining routine to The Addams Family which earned them 143.43 for the free skate and 218.68 overall.
Four-time world champions Savchenko and Szolkowy, who had been second after the short programme, dropped to third after both fell during their free skate to The Nutcracker.
The Germans, who lost their world title to Volosozhar and Trankov last year, finished fourth in the free skate with 136.14, and scored 215.78 overall.
Normal Hill/10km cross-country
Germany's Eric Frenzel kept his cool amid spring-like temperatures to storm to Olympic gold in the nordic combined.
Starting first after winning the morning's ski jumping on the normal hill, Frenzel took the lead in the 10km cross country ski phase with only Akito Watabe of Japan for company.
With temperatures of 12C at the RusSki Gorki ski centre, Watabe gamely kept up with Frenzel but had no match for his final sprint.
Frenzel, who won a bronze in the team event in Vancouver 2010, finished in 23min 50.2sec with Watabe in second on 23min 54.4sec. Norway's Magnus Krog took the bronze in 23min 58.3sec.
The Netherlands won a fourth gold in five speedskating events at the Sochi Olympics when former world champion Stefan Groothuis claimed the men's 1000m title.
The 32-year-old beat Canada's Denny Morrison into second place with Dutchman Michel Mulder, who won the 500m gold on Monday, in third.
America's Shani Davis, seeking a third consecutive gold in the event, was a disappointing eighth.
Davis, 31, finished third when Groothuis clinched the 1000m world title in 2012 and had been trying to become the first male speed skater to triumph in a single event at more than two Winter Olympics.
Germany captured their third gold in three luge events when world champions Tobias Wendl and Tobias Arlt won the men's pairs.
World Cup winners Wendl and Arlt clocked a combined time of one min 38.933 sec after two runs to finish 0.522sec ahead of Austrian brothers Andreas and Wolfgang Linger, who came to Sochi as reigning two-time Olympic champions.
Latvian brothers Andris and Juris Sics, who grabbed silver at Vancouver in 2001, finished in third place.
Felix Loch won the men's singles gold medal while Natalie Geisenberger added the women's title.
Alpine skiing - downhill
Swiss outsider Dominique Gisin and Slovenian Tina Maze finished in a dead heat as an Alpine skiing gold medal was shared for the first time in Winter Olympics history in a dramatic women's downhill.
Gisin, wearing bib number eight, was first to clock 1min 41.57sec down the icy 2.7km-long course and in brilliant sunshine it looked to have been enough for outright victory.
But Gisin, who has not won a World Cup downhill race since 2009 and whose best finish in the downhill this season is seventh, had not counted on Maze, the 2013 super-G world champion and proven big-stage performer.
Switzerland's Lara Gut claimed bronze while Germany's Maria Hoefl-Riesch, the winner of Monday's super-combined, could only finish 13th.
Kaitlyn Farrington upset three former Olympic champions to take women's halfpipe snowboarding gold.
The American had failed to make the final directly from the heats, needing a second chance semi-final to progress, but produced a stunning second run to score 91.75.
Vancouver 2010 winner Torah Bright of Australia missed out on gold by just 0.25 while veteran Salt Lake City 2002 champion Kelly Clark, 30, took bronze with a score of 90.75.