Soviet President Mikhail Gorbachev wowed the American public all last week with his smooth style and unexpected strolls on Washington streets.

A few hours after Gorbachev departed for Minnesota yesterday, the Soviet Union's finest professional soccer team, Dynamo Moscow, dazzled 3,025 spectators at RFK Stadium with a 6-1 blowout of the Washington Diplomats.

After the American Soccer League team shocked the visitors with an early goal, Dynamo Moscow established control and blew open the game with four goals in an 11-minute span of the second half.

Roman Pilipchuk scored three goals -- two on stinging headers -- and Igor Kolyvanov added two as Dynamo Moscow ended its first outdoor tour of North America with four wins and no losses. Last week, Dynamo Moscow defeated a New York all-star team, the ASL's Boston Bolts and the Hamilton Steelers of the Canadian professional league.

In 1987, Dynamo Moscow struggled with its indoor game on a two-week tour against Major Indoor Soccer League teams.

Although they never met while in this country, Dynamo Moscow Coach Anatoly Byshovets said Gorbachev and his team "had a common task of mutual understanding. . . . We both achieved a goal of direct communication with the {U.S.} people and, of course, the sportsmen."

Playing the first-place team in the Soviet Union's Premier Division was the Diplomats' second predicament of the day. After a 2-1 loss in Boston Saturday night, their return flight Sunday morning was interrupted when the jet lost cabin pressure and was forced to land.

Although the Soviets showed superior technical skill and speed, the Diplomats had the best scoring chances in the early moments.

"It was good motivation to play a team like that," Diplomats Coach Stojan Nikiloc said. "They're a world class team. They always know what they're doing. If they make a mistake, they always cover for each other."

The Diplomats (4-4 in the ASL) pressured deep in Dynamo Moscow's end in the seventh minute, only to have guest player Joaquin Canales' 10-yard header skip off the top of the crossbar.

A minute later, Salvador Coreas found Canales free on the right wing. Canales approached the edge of the penalty box and crossed to Leonel Suazo, who beat goalkeeper Andrei Smetonin with a six-yard header.

It was the only goal allowed by the Soviets on their week-long tour.

Pilipchuk's score was the equalizer and then he put Dynamo Moscow ahead in a 5:37 span of the first half. In the 18th minute, Andrey Kobelev sent a well-placed corner kick to Pilipchuk, whose eight-yard header found the lower right corner.

Five minutes later, midfielder Vecheslav Tsarev sent a long ball towards the goal area where Pilipchuk rose above two defenders and froze goalkeeper Warren Westcoat with a sharp header.