articleDALLAS (AP) — Colin Blackwell scored 17:46 into overtime and the Dallas Stars beat the Colorado Avalanche 4-3 in Game 2 on Monday night to even up their first-round Western Conference series. Nathan MacKinnon scored on a power play for his third goal in this series for the Avalanche, and his 51st in the NHL playoffs. Dallas took an advantage with 4:48 left in the second period, and almost immediately Blackwood made a sliding kick save to deny Marchment. There was only seven seconds left on power play when Colorado got another penalty, and Stars coach Pete DeBoer called timeout. The Stars matched MacKinnon’s goal with a power play in the final minute of the first period.