(AP Photo/Gene J. Puskar)PITTSBURGH – Chad Kuhl pitched seven sharp innings and Colin Moran and Bryan Reynolds each homered in three-hit games in the Pittsburgh Pirates’ 7-0 victory over the slumping Chicago Cubs on Thursday. Chicago’s magic number for clinching the NL Central remained two with three days left in the regular season. Chicago concludes its regular season this weekend with a three-game series at the crosstown White Sox, which begins Friday night. UP NEXTCubs: Visit the crosstown White Sox on Friday night to open a three-game series to end the regular season. Pirates: Start a three-game series against the Indians at Cleveland.