The Blackhawks rallied to beat the Kings, while the Bruins shutout the Penguins.
Los Angeles Kings left wing Dustin Penner (25) maintains control of the puck against Chicago Blackhawks center Michal Handzus (26) during the first period of Game 1 of the NHL Stanley Cup Western Conference finals, Saturday, June 1, 2013, in Chicago.Nam Y. Huh/The Associated Press
Pittsburgh Penguins' Sidney Crosby (87) gets off a pass in front of Boston Bruins' Patrice Bergeron (37) in the first period of Game 1 of the NHL Stanley Cup Eastern Conference finals in Pittsburgh, Saturday, June 1, 2013.Gene J. Puskar/The Associated Press
Los Angeles Kings' Dustin Brown (23) knocks down Chicago Blackhawks' Brian Bickell during the first period of Game 1 of their NHL Western Conference final playoff game in Chicago, Illinois, June 1, 2013.JEFF HAYNES/Reuters
Boston Bruins' Milan Lucic (L) falls after being hit by Pittsburgh Penguins' James Neal during the second period of Game 1 of their NHL Eastern Conference finals playoff series in Pittsburgh, Pennsylvania June 1, 2013.BRIAN SNYDER/Reuters
Boston Bruins Nathan Horton (R) checks Pittsburgh Penguins' Paul Martin during the first period of Game 1 of their NHL Eastern Conference finals playoff series in Pittsburgh, Pennsylvania June 1, 2013.BRIAN SNYDER/Reuters
Los Angeles Kings left wing Dustin Penner (25) grabs Chicago Blackhawks center Michal Handzus (26), who pulls down Los Angeles Kings center Mike Richards (10) during a fight in the first period of Game 1 of the NHL Stanley Cup Western Conference finals, Saturday, June 1, 2013, in Chicago.Nam Y. Huh/The Associated Press
Pittsburgh Penguins' Matt Cooke (R) checks Boston Bruins' Adam McQuaid from behind resulting in a five minute major penalty during the second period of Game 1 of their NHL Eastern Conference finals playoff series in Pittsburgh, Pennsylvania June 1, 2013.BRIAN SNYDER/Reuters
Boston Bruins' Adam McQuaid lays on the ice after being hit from behind by Pittsburgh Penguins' Matt Cooke resulting in a five minute major penalty during the second period of Game 1 of their NHL Eastern Conference finals playoff series in Pittsburgh, Pennsylvania June 1, 2013.BRIAN SNYDER/Reuters
Boston Bruins' Zdeno Chara (L) tangles with Pittsburgh Penguins' Sidney Crosby during the second period of Game 1 of their NHL Eastern Conference finals playoff series in Pittsburgh, Pennsylvania June 1, 2013.BRIAN SNYDER/Reuters
Boston Bruins' Patrice Bergeron fights with Pittsburgh Penguins Evgeni Malkin during the second period of Game 1 of their NHL Eastern Conference finals playoff series in Pittsburgh, Pennsylvania June 1, 2013.BRIAN SNYDER/Reuters
Chicago Blackhawks' goalie Corey Crawford blocks a shot from Los Angeles Kings' Dwight King in the first period during Game 1 of their NHL Western Conference final playoff game in Chicago, Illinois, June 1, 2013.JEFF HAYNES/Reuters
Pittsburgh Penguins goalie Tomas Vokoun (92) makes a save on Boston Bruins' Jaromir Jagr (L) during the first period of Game 1 of their NHL Eastern Conference finals playoff series in Pittsburgh, Pennsylvania June 1, 2013.BRIAN SNYDER/Reuters
Chicago Blackhawks goalie Corey Crawford (50) defects a shot by Los Angeles Kings center Colin Fraser (24) during the second period in Game 1 of the NHL Stanley Cup Western Conference finals Saturday, June 1, 2013, in Chicago.Charles Rex Arbogast/The Associated Press
Pittsburgh Penguins goalie Tomas Vokoun (L) makes a save on Boston Bruins' Brad Marchand (R) during the first period of Game 1 of their NHL Eastern Conference finals playoff series in Pittsburgh, Pennsylvania June 1, 2013.BRIAN SNYDER/Reuters
The puck gets by Los Angeles Kings goalie Jonathan Quick for a goal by Chicago Blackhawks center Patrick Sharp during the second period of Game 1 of the NHL Stanley Cup Western Conference finals, Saturday, June 1, 2013,in Chicago.Nam Y. Huh/The Associated Press
Pittsburgh Penguins goalie Tomas Vokoun (92) watches as a shot by Boston Bruins' David Krejci gets past him for a goal in the first period of Game 1 in an NHL Stanley Cup Eastern Conference finals, Saturday, June 1, 2013, in Pittsburgh.Gene J. Puskar/The Associated Press
Boston Bruins' Andrew Ference (L) celebrates a goal on Pittsburgh Penguins goalie Tomas Vokoun scored by Bruins David Krejci during the first period of Game 1 of their NHL Eastern Conference finals playoff series in Pittsburgh, Pennsylvania June 1, 2013.BRIAN SNYDER/Reuters
Los Angeles Kings' Brad Richardson (R) and Colin Fraser (L) celebrate a goal scored by teammate Justin Williams (not pictured) as Chicago Blackhawks' Marcus Kruger (C) looks on in the first period during Game 1 of their NHL Western Conference final playoff game in Chicago, Illinois, June 1, 2013.JEFF HAYNES/Reuters
Los Angeles Kings goalie Jonathan Quick stops a shot from Chicago Blackhawks' Patrick Kane during the second period of Game 1 of their NHL Western Conference finals playoff game in Chicago, Illinois, June 1, 2013.JIM YOUNG/Reuters
Los Angeles Kings' Anze Kopitar tries to get the puck as it is blocked by Chicago Blackhawks goalie Corey Crawford (R) in the third period of Game 1 of their NHL Western Conference finals playoff game in Chicago, Illinois, June 1, 2013.JIM YOUNG/Reuters
Pittsburgh Penguins' Chris Kunitz (14) can't get a shot past Boston Bruins goalie Tuukka Rask (40) in the second period of Game 1 in an NHL Stanley Cup Eastern Conference finals in Pittsburgh, Saturday, June 1, 2013.Gene J. Puskar/The Associated Press
Los Angeles Kings goalie Jonathan Quick deflects a puck off his face mask during the first period of Game 1 of the NHL Western Conference finals playoff game against the Chicago Blackhawks in Chicago, Illinois, June 1, 2013.JIM YOUNG/Reuters
Los Angeles Kings goalie Jonathan Quick makes a save on Chicago Blackhawks' Viktor Stalberg (R) as teammate Dwight King (rear) looks on during the first period of Game 1 of their NHL Western Conference finals playoff game in Chicago, Illinois, June 1, 2013.JIM YOUNG/Reuters
Boston Bruins' Tuukka Rask makes a save against the Pittsburgh Penguins during the second period of Game 1 of their NHL Eastern Conference finals playoff series in Pittsburgh, Pennsylvania June 1, 2013.BRIAN SNYDER/Reuters
Chicago Blackhawks' Patrick Sharp celebrates his goal on Los Angeles Kings goalie Jonathan Quick (L) as Kings' Drew Doughty looks on in the second period of Game 1 of their NHL Western Conference finals playoff game in Chicago, Illinois, June 1, 2013.JIM YOUNG/Reuters
Chicago Blackhawks' Marian Hossa celebrates his second period goal against the Los Angeles Kings during Game 1 of their NHL Western Conference final playoff game in Chicago, Illinois, June 1, 2013.JEFF HAYNES/Reuters
Chicago Blackhawks' Marian Hossa (C) celebrates his second period goal with teammates Jonathan Toews (L), Duncan Keith (R) and Brian Bickell (2nd L) in Game 1 of the NHL Western Conference final playoffs against the Los Angeles Kings in Chicago, Illinois June 1, 2013.JEFF HAYNES/Reuters
Los Angeles Kings goalie Jonathan Quick looks up at the scoreboard after a goal by the Chicago Blackhawks in the second period of Game 1 of the NHL Stanley Cup Western Conference finals, Saturday, June 1, 2013, in Chicago.Nam Y. Huh/The Associated Press