The Knicks advanced to the second round of the NBA playoffs after Truck Robinson scored nine of his 22 points during a 28-10 second-quarter run that gave them a 105-99 victory over the New Jersey Nets last night in New York. The Knicks won both games of the series.

Robinson, who has an injured shoulder, said he "couldn't practice because I was in the hospital getting hot packs and ultrasound treatments. But there was no way I wasn't going to play. I can't feel the pain at all now."

The Knicks next play the Philadelphia 76ers, who had the best regular season record in the NBA. The first game of that best-of-seven Eastern Conference semifinal series starts Sunday in Philadelphia.

The victory was the Knicks' fourth straight over the Nets, who are 0-6 in three playoff miniseries since joining the NBA in 1976-77.

After their 28-10 spurt early in the second quarter, the Knicks led, 62-39, at halftime.

New York's Louis Orr scored the first basket of the second half, then the Nets began a desperate attempt to get back into contention. Four consecutive points by Albert King ended a 27-10 rally that made it 74-66 with 2:21 to go in the third quarter, and it was 80-70 at the end of the period.

The Nets scored the first four points of the last period to close to 80-74. But Sly Williams scored six points of a 9-2 run that made it a 13-point lead.

King's driving shot and jumper closed New Jersey to 99-94 with 54 seconds remaining. Webster missed two free throws 11 seconds later, but the Nets failed to score when Darwin Cook missed a driving shot and the Knicks made four foul shots down the stretch to ensure victory.