CHICAGO — The Blues kept pushing and pushing until a costly play by Patrick Kane provided an opening. And there was nothing for the Blackhawks to challenge.
Jaden Schwartz scored at 13:32 of the third period with Kane in the penalty box for high-sticking, and St. Louis beat Chicago 3-2 Sunday to take a 2-1 lead in the first-round playoff series.
Patrik Berglund and rookie Colton Parayko also scored as St. Louis rallied after a difficult 3-2 loss in Game 2 that included two key coach's challenges that went against the Blues — one of them wiping out a tiebreaking goal for Vladimir Tarasenko.
Brian Elliott had 44 saves Sunday, keeping St. Louis in the game during Chicago's strong second period.
"No one said it was going to be a short series, and even with them getting the win in Game 2, that didn't affect us," Schwartz said. "We came out and executed again (Sunday) and we did a good job of that."
It was Chicago's first regulation loss when leading after two periods since Game 2 of the 2014 Western Conference finals against Los Angeles.
The Blackhawks had been 70-0-4 since the start of last season when they had the lead at the beginning of the third, according to STATS.
"That was a tough loss," Blackhawks coach Joel Quenneville said. "Let's get back into it. But it was a pretty competitive game, kind of comparable to what we saw in the first two."
Kane, the NHL's leading scorer this season and one of the favorites for league MVP, got four minutes for a high stick on defenseman Alex Pietrangelo, and St. Louis made Chicago pay for the mistake.
"I've got to be smarter in that situation," Kane said.
First Period—1, Chicago, Seabrook 1 (Toews, Kane), 2:18 (pp). 2, St. Louis, Parayko 1 (Pietrangelo, Fabbri), 12:11 (pp). Penalties—Brodziak, StL, served by Fabbri, double minor (roughing), 1:49; Svedberg, Chi (roughing), 1:49; Bouwmeester, StL (hooking), 3:41; Bouwmeester, StL (interference), 5:46; Svedberg, Chi (high-sticking), 12:04; Edmundson, StL (cross-checking), 19:31; Shaw, Chi (slashing), 19:31.
Second Period—3, Chicago, Anisimov 1 (Panarin), 1:04. Penalties—Upshall, StL (tripping), 9:38.
Third Period—4, St. Louis, Berglund 1 (Shattenkirk, Fabbri), 5:15. 5, St. Louis, Schwartz 1 (Backes, Tarasenko), 13:22 (pp). Penalties—Kane, Chi, double minor (high-sticking), 11:51. Shots on Goal—St. Louis 9-13-14—36. Chicago 10-24-12—46. Power-play opportunities—St. Louis 2 of 3; Chicago 1 of 4. Goalies—St. Louis, Elliott 2-1-0 (46 shots-44 saves). Chicago, Crawford 1-2-0 (36-33). A—22,207 (19,717). T—2:39. Referees—Jean Hebert, Tim Peel. Linesmen—David Brisebois, Pierre Racicot.
Islanders 4, Panthers 3, OT: Thomas Hickey scored 12:31 into overtime to lift host New York to a 2-1 series lead. Ryan Pulock, Shane Prince and Frans Nielsen scored for the Islanders, and Thomas Greiss had 36 saves. John Tavares and Kyle Okposo each had two assists. Reilly Smith had a goal and two assists, and Aleksander Barkov and Nick Bjustad also scored for the Panthers.
First Period—1, Florida, Smith 4 (Petrovic, Matheson), 2:25. Penalties—McKegg, Fla (holding), 8:32; Clutterbuck, NYI (high-sticking), 8:32; Hudler, Fla (interference), 10:19; Martin, NYI (roughing), 18:58.
Second Period—2, Florida, Barkov 1 (Smith, Huberdeau), 1:11. 3, N.Y. Islanders, Pulock 1 (Okposo, Tavares), 5:21 (pp). 4, Florida, Bjugstad 2 (Smith, Kulikov), 7:23. 5, N.Y. Islanders, Prince 1 (Pulock, de Haan), 11:48. 6, N.Y. Islanders, Nielsen 2 (Tavares, Okposo), 16:55 (pp). Penalties—Petrovic, Fla (boarding), 4:43; Jokinen, Fla (holding), 5:08; Kulikov, Fla (clipping), 16:12; Cizikas, NYI (tripping), 18:32.
Third Period—None. Penalties—Hamonic, NYI (high-sticking), 4:38. First Overtime—7, N.Y. Islanders, Hickey 1 (Nelson, Bailey), 12:31. Penalties—None. Shots on Goal—Florida 12-12-7-8—39. N.Y. Islanders 8-16-7-8—39. Power-play opportunities—Florida 0 of 3; N.Y. Islanders 2 of 4. Goalies—Florida, Luongo 1-2-0 (39 shots-35 saves). N.Y. Islanders, Greiss 2-1-0 (39-36). A—15,795 (15,795). T—3:13. Referees—Chris Rooney, Francois St. Laurent. Linesmen—Shane Heyer, Mark Shewchyk.