CHICAGO (AP) _ Bryan Trottier scored with 23 seconds left in the third period as New York rallied for a 6-5 NHL victory over the Chicago Blackhawks Sunday night after the Islanders' Mike Bossy had tied the game with his third goal of the final period.

Chicago defenseman Bob Murray scored on a 55-foot slapshot at the 7:25 mark of the third period to give the Hawks a brief 5-4 lead. The Islanders had tied the score at 4-4 in the span of just 37 seconds midway in the final period on power-play goals by Bossy, and Randy Boyd.

On Bossy's goal, his second of the game and 590th of his career, the Islanders enjoyed a two-man advantage.

Bossy tied the game 5-5 with his 39th career hat trick after Trottier had gone behind the Blackhawk net to steal the puck.

The Islanders cut the Chicago margin to 3-2 at the 53-second mark of the final period when Bossy drilled in an eight footer.

But Steve Larmer put the Hawks up by two goals at the 4:46 mark when he wristed in a 15-footer, his 24th of the year.

Doug Wilson, scored his 15th goal at the 55-second mark of the opening period as Chicago got off to a 3-0 lead.

Fraser made it 2-0 when he poked in the puck from just outside the crease after the Hawks took advantage of a three on two breakaway.

With New York's Gord Dineen serving a four minute double minor for high- sticking, Denis Savard knocked in a rebound shot that Wilson had unloaded from 45 feet.

After New York's Pat LaFontaine was stopped by goalie Murray Bannerman on a breakaway during a second period power play, defenseman Ken Leiter scored on a 65-foot slapshot to cut Chicago's margin to 3-1.

It was Bossy's second hat trick of the season. He also scored three goals against Philadelphia on Nov. 28.