Chris Kunitz scored his second power-play goal of the game 8:34 into overtime, off a pass from Sidney Crosby, and the Pittsburgh Penguins shook off an early deficit and a late blown lead to beat the New York Islanders 5-4.
Mason Raymond had his second career hat trick -- scoring at even strength, short-handed and on a power play -- and added an assist to help the Vancouver Canucks rout the Calgary Flames 7-2 on Wednesday night for their third straight victory.
Anthony Stewart scored his first three goals of the season, completing his first career hat trick with a tying power-play goal, and the Atlanta Thrashers beat the Anaheim Ducks 5-4 in a shootout Friday night.
Big Chicago forward Dustin Byfuglien banged in a pair of power-play rebounds and added an assist to lift the Blackhawks to a 5-2 win over the Vancouver Canucks and a 2-1 lead in the Western Conference semifinal series on Wednesday night.
Chris Drury had two of New York's three rare power-play goals and finished his hat trick with a short-handed tally for the Rangers, who beat the Tampa Bay Lightning for the third time this season, 5-2 Thursday night.
Tomas Plekanec had three power-play goals for his first hat trick, and rookie Carey Price won his second straight start since taking over as Montreal's top goalie in the Canadiens' 6-2 win over the Buffalo Sabres on Friday night.