Rookie Luc Dufour scored the game-winner on a breakaway at 12:02 of the final period and goalie Pete Peeters turned aside 38 shots last night, allowing the Boston Bruins to clinch their Adams Division playoff series with a 2-1 victory over the Quebec Nordiques.

The Bruins, who lost to the Nordiques in last year's quarterfinals, advance to the division final against the Buffalo Sabres, who swept Montreal in three games. Boston won its best-of-five series, 3-1.

The winning shot was the 20-year-old Dufour's first playoff goal. He took a pass from Keith Crowder to break in alone on goaltender Daniel Bouchard and slip the puck past him on the right side.

Quebec had made it a 1-1 game at 3:45 of the third period. Anton Stastny, in the slot area, took Peter Stastny's pass from the corner and drove a quick shot between Peeters' legs that trickled over the goal line.

Outshot, 25-11, over the first two periods, the Bruins yet owned a 1-0 lead on a goal by Barry Pederson 57 seconds into the game.

Peeters led the league in goals-against average, shutouts and wins during the regular season. And now his coach, former goalie Gerry Cheevers, called this game "the best performance I've ever seen from a goaltender. We did not play well but our goalie won it for us."

Losing Coach Michel Bergeron concurred: "We were ready to go back to Boston to play a fifth game but Peeters just wouldn't let us."