PITTSBURGH (AP) -- Washington goaltender Braden Holtby stopped 31 shots in a shutout to lead the Capitals to a 3-0 win at Pittsburgh on Saturday, preventing the Penguins building their lead in the NHL Eastern Conference.
The Penguins' defeat created a jam at the top of the East, with the top four teams separated by just two points, including Detroit, which won in overtime at Ottawa.
In the West, key games saw Los Angeles beat San Jose and move level on points with the Sharks, while Central Division leader Chicago won convincingly at Colorado.
Washington's Eric Fehr scored twice and Marcus Johansson netted his 10th of the season for the Capitals.
It was Washington's first win over Pittsburgh in nine meetings.
Los Angeles' Anze Kopitar and Jake Muzzin scored power-play goals to help the Kings to a 3-1 win against San Jose.
Jonathan Quick made 21 saves and Tyler Toffoli also scored for Los Angeles, which took same revenge for losing to the Sharks on the opening night of the season, which damped their Stanley Cup championship banner-raising ceremony.
Joe Pavelski scored for San Jose which lost in regulation for just the second time in more than a month.
Chicago's Patrick Kane scored twice to lead the Blackhawks to a 5-2 win at Colorado.
Corey Crawford stopped 23 shots, Brandon Saad and Brent Seabrook also scored while Patrick Sharp celebrated his 33rd birthday with a game-sealing goal in the third period.
Nathan MacKinnon and Erik Johnson had goals for the Avalanche, which had won its previous three.
Detroit's Gustav Nyquist scored at 4:12 of overtime to give the Red Wings a 3-2 win at Ottawa.
Nyquist circled the Senators' net, carrying the puck around their zone for 10-12 seconds before launching a shot from the slot for the game winner.
The Red Wings got regulation goals from Justin Abdelkader and Henrik Zetterberg, but owed most to goalie Jimmy Howard, who made 31 saves, including one on Erik Karlsson's breakaway early in overtime.
Mike Hoffman and Clarke MacArthur scored in regulation for the Senators.
Nashville's Colin Wilson scored twice to lead the Predators to a 4-1 win over Philadelphia.
Filip Forsberg and Mike Fisher also scored for Nashville, which has won 12 of 14 games this season when scoring first.
Philadelphia captain Claude Giroux had the lone goal for the Flyers, who had their three-game winning streak snapped.
Arizona's Shane Doan scored the only goal in the shootout with a broken stick, giving the Coyotes a 2-1 win against Anaheim.
After both teams failed to score in the first three rounds of the shootout, Doan broke his stick while shooting on Frederik Andersen, sending the puck trickling toward the right post. Thrown off by the stick and slow-moving puck, Andersen couldn't react in time to stop the puck from sneaking over the line.
Devan Dubnyk stopped 36 shots while Zbynek Michalak also scored as the Coyotes won consecutive games for the first time in five weeks.
Rene Bourque scored for Ducks.
Winnipeg's Andrew Ladd scored a fluky goal in overtime to give the Jets a 4-3 win at Minnesota.
Bryan Little, Adam Lowry and Blake Wheeler also scored for the Jets.
Mikael Granlund, Jason Pominville and Thomas Vanek netted for the Wild, which has lost five straight.
Dallas notched its fifth win in six starts to a 4-3 victory at St. Louis, seizing control with power-play goals from Trevor Daley and Jason Demers in the second period.
Buffalo won its first game in five when Tyler Ennis scored in a shootout to give the Sabres a 4-3 victory over the New York Islanders.
The New York Rangers extended their winning streak to eight with Derek Stepan's hat trick producing a 3-1 victory over New Jersey, which lost its first game under its new coaching team.
Columbus scored four times in the second period to overwhelm Boston and win 6-2, with Kevin Connauton contributing a goal and two assists.
Tampa Bay goalie Ben Bishop made 25 saves in his return from an injury, helping the Lightning defeat Carolina 2-1.
Calgary rookie Johnny Gaudreau made it six goals in his past three games by scoring twice in the Flames' 4-1 win against Edmonton.