WILLIAMSPORT, PA., AUG. 24 -- Wang Chih-chang and Cheng Chang-ming pitched a one-hitter and Hsieh Yi-chieh drove in seven runs with two homers as Taiwan trounced West Germany, 14-0, today in a Little League World Series quarterfinal.

Wang struck out seven and was pulled after issuing a fourth-inning walk. Cheng fanned six of the nine batters he faced.

Brian Huddleston of West Germany's Ramstein Air Force Base team singled to right with one out in the sixth to break up the no-hitter.

The victory moved Sun-Hua of Taiwan into a Saturday semifinal against Trail, British Columbia, which defeated Matamoros, Mexico, 8-3, Tuesday. Rain interrupted play each day since.

Earlier today, Shippensburg, Pa., defeated Mobile, Ala., 3-1, in the completion of a suspended game, and will play Cyprus, Calif., in Saturday's other semifinal.

Hsieh hit a grand slam over the left field wall in the first inning, giving Taiwan a 4-0 lead. It scored Chen Chin-feng and Sun Chao-chi, who had singled, and Kuo Wen-chu, who walked.

Wang walked later in the inning, and came around when Cheng walked, Yang Sun-chuan sacrificed and Chen singled.