The AP reports: Ray Allen scored 22 points, and Kevin Garnett added 20 and blocked four shots to lead the Celtics to a 106-92 victory over the Chicago Bulls on Tuesday night. Paul Pierce scored 17 for Boston, which won its fourth straight and remained six games ahead of Detroit in the conference standings. Allen was 5-of-7 on 3-pointers, Pierce hit 4 of 5 and Boston made 14 of 25 in all—one shy of its season-high. Chicago continued to fade from the playoff picture, despite getting a season-high 24 points from Tyrus Thomas, who started for the injured Drew Gooden, and 19 from Andres Nocioni. With eight games left, the 11th-place Bulls trail Atlanta by five and have to climb over New Jersey and Indiana to make their fourth straight postseason appearance.