CONWAY, S.C. — Nick Kahle hit a grand slam and drove in five runs as third-seeded Washington moved a win away from the NCAA Tournament’s super regional round with an 11-6 victory over top-seeded host Coastal Carolina on Saturday. The Huskies (32-23) will only need to defeat Coastal or UConn once on Sunday night to move on. Washington got going with a big, six-run second inning that was highlighted by catcher Kahle’s grand slam. Coastal Carolina (43-18), which won the 2016 College World Series, rallied to cut the lead to 7-6 in the sixth when Matt Beaird scored from third on a passed ball.