CREATE TABLE table_9216 ("Tournament" CLOB, "Surface" CLOB, "Week" CLOB, "Winner and score" CLOB, "Finalist" CLOB, "Semifinalists" CLOB)

what is the surface when the winner and score is gustavo kuerten 6-4, 7-5, 7-6(6)?
SELECT "Surface" FROM table_9216 WHERE "Winner and score" = 'gustavo kuerten 6-4, 7-5, 7-6(6)'
SELECT "Surface" FROM "table_9216" WHERE "Winner and score" = 'gustavo kuerten 6-4, 7-5, 7-6(6)'